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Urgent Care · Strep Throat

Strep Throat Treatment

10-minute rapid strep, same-visit throat culture backup, and first-dose antibiotic on-site. Walk in seven days a week.

Joint Commission accredited. Physician on shift every day. Most insurance accepted.

10 min
Rapid Strep Result
4.9★
Google Rating
7 Days
Walk-In Available
Quick Answer

Can I walk in for a strep test today?

TrufaMED tests for streptococcal pharyngitis with a 10-minute rapid antigen test, seven days a week. Culture backup is sent when clinically warranted. No appointment needed. A typical strep visit — physician evaluation, throat swab, rapid result, and first-dose antibiotic if positive — takes about 25 minutes.

Featured Answer

Strep throat is a bacterial infection that responds quickly to antibiotics and carries a small but real risk of rheumatic fever when untreated. At TrufaMED a board-certified physician scores your symptoms (Centor/McIsaac criteria), runs a rapid strep if indicated, sends a throat culture backup when necessary, and prescribes guideline-based antibiotics for confirmed infection. Most patients walk out with a prescription in under 30 minutes.

Who Gets Tested

When to Test for Strep and When to Skip

Sore throats are overwhelmingly viral. Testing every sore throat leads to false positives, unnecessary antibiotics, and resistance. We use the modified Centor (McIsaac) score to decide who benefits from testing and who is better managed symptomatically.

  • Sudden-onset sore throat (hours, not days)
  • Fever 100.4°F or higher (+1 Centor point)
  • Absence of cough (+1 point)
  • Tender anterior cervical lymph nodes (+1 point)
  • Tonsillar exudate or swelling (+1 point)
  • Age 3 to 14 (+1 point)
  • Age 15 to 44 (0 points)
  • Age 45+ (−1 point)
  • Headache, nausea, or abdominal pain (especially children)
  • Scarlatiniform (sandpaper) rash on trunk

Score interpretation: 0 to 1 point — strep unlikely, no test, symptomatic care. 2 to 3 points — test with rapid antigen, treat if positive. 4 to 5 points — high pre-test probability, rapid test plus consider empirical treatment while culture pending in high-risk patients. Findings that push toward viral (cough, rhinorrhea, hoarseness, conjunctivitis, mouth ulcers) argue against testing at all.

We do not routinely test or treat asymptomatic household contacts of a strep patient unless they become symptomatic, because chronic carrier rates are common and treating carriers does not reduce complications.

Testing Methods

Rapid Antigen Plus Culture Backup

The rapid antigen detection test (RADT) returns a result in 10 minutes and is highly specific — a positive rapid test is a true positive, no culture needed. Sensitivity is the weak point, particularly in children, so we back up negatives with culture when the pre-test probability is high.

Method Turnaround Performance
Rapid Antigen (RADT) 10 minutes in-clinic Specificity approximately 95%, sensitivity 70–90% depending on technique and patient age
Throat Culture 24 to 48 hours Gold standard; sensitivity 90–95%; used to back up a negative rapid in children and high-risk adults
Molecular (PCR/NAAT) 15 to 60 minutes in-clinic Sensitivity and specificity both over 95%; used when available to eliminate culture backup step

Adults: A negative rapid antigen in an adult with a low-to-moderate Centor score is sufficient to rule out strep and we do not culture. A negative rapid in an adult with a high Centor score prompts culture backup.

Children (3 to 14): Because pediatric sensitivity of rapid antigen runs lower and rheumatic fever risk is concentrated in this age group, a negative rapid antigen is routinely backed up by a throat culture. If the culture returns positive 24 to 48 hours later, the pharmacy is notified and antibiotics started.

Under 3 years: Strep pharyngitis is uncommon under age 3, rheumatic fever risk is extremely low, and routine testing is not recommended. Children in this age with pharyngitis are evaluated clinically; we test only when there is a strep-positive household contact or classic scarlet fever rash.

Antibiotic Selection

Penicillin Still Wins This Fight

Group A streptococcus has never developed resistance to penicillin. Oral penicillin V or amoxicillin for 10 days remains first-line therapy for confirmed strep pharyngitis. Cephalexin is the alternative for patients with non-severe penicillin intolerance; macrolides and clindamycin are reserved for true IgE-mediated penicillin allergy.

First-Line: Penicillin V or Amoxicillin

For children, amoxicillin 50 mg/kg once daily (max 1,000 mg) for 10 days offers better palatability than penicillin V and comparable efficacy. Adults take penicillin V 500 mg twice daily or amoxicillin 500 mg twice daily for 10 days. A single intramuscular dose of benzathine penicillin G is an option for patients who cannot complete oral therapy — typically reserved for adherence concerns, ongoing vomiting, or rheumatic fever history.

Penicillin-Intolerant (Not Allergic)

Cephalexin 40 mg/kg/day divided twice daily (pediatric) or 500 mg twice daily (adult) for 10 days. Cross-reactivity between penicillin and first-generation cephalosporins is low, and cephalexin is safe for patients with a history of mild penicillin intolerance (rash without hives or anaphylaxis).

True IgE-Mediated Penicillin Allergy

For patients with documented hives, angioedema, or anaphylaxis to penicillin, we prescribe azithromycin (12 mg/kg/day pediatric, 500 mg day 1 then 250 mg days 2 to 5 in adults) or clindamycin 7 mg/kg three times daily for 10 days. Macrolide resistance in Group A streptococcus is a growing concern — we check regional antibiograms when selecting.

What Does Not Work

Tetracyclines, trimethoprim-sulfamethoxazole, and fluoroquinolones do not reliably eradicate Group A streptococcus from the pharynx and should not be used for strep treatment. If a patient has been started on the wrong agent elsewhere, we switch them over same visit.

Strep Antibiotic Snapshot

First-line adultPen V or amox × 10 d
First-line pediatricAmox 50 mg/kg × 10 d
Penicillin intoleranceCephalexin
IgE allergyAzithromycin or clindamycin
Single IM doseBenzathine penicillin G
Course length10 days (5 for azithromycin)

Symptomatic Care

Acetaminophen or ibuprofenPer label
Warm salt-water gargles3 to 4 x daily
Soft cool foodsAs tolerated
Hydration target2 to 3 liters/day
Toothbrush changeAfter 24 h of abx
Variants & Viral

Scarlet Fever vs Viral Pharyngitis

Strep pharyngitis has a classic rash variant — scarlet fever — and a much larger category of look-alike viral illnesses that are treated supportively. Knowing the difference prevents unnecessary antibiotics.

Scarlet Fever

Strep pharyngitis plus a fine, red, sandpaper-textured rash that blanches. Classically starts on the trunk, spares the palms and soles, plus strawberry tongue and circumoral pallor. Same treatment as strep — 10 days of penicillin or amoxicillin.

Viral Pharyngitis

The larger share of sore throats. Cough, runny nose, hoarseness, conjunctivitis, or mouth ulcers suggest viral. No antibiotic indicated. Symptomatic care, hydration, analgesics, 3 to 7 day self-limited course.

Mononucleosis

EBV-related pharyngitis in teens and young adults. Often mimics strep with exudate and fever, but posterior chain lymphadenopathy and splenomegaly distinguish. Heterophile (Monospot) testing confirms. Avoid amoxicillin — causes rash.

Coxsackie (Hand-Foot-Mouth)

Viral pharyngitis with oral vesicles or ulcers, sometimes with rash on palms, soles, or perianal area. Common in children. Supportive care, hydration, topical anesthetic mouthwash for pain.

Gonococcal Pharyngitis

Sexually-transmitted pharyngeal gonorrhea can mimic bacterial pharyngitis in sexually active adults. Considered when strep negative and history warrants. Treated per CDC guidelines.

Post-Nasal Drip & Allergy

Allergic rhinitis with post-nasal drainage produces a chronic mild sore throat without fever or exudate. Treatment is antihistamine plus nasal steroid, not antibiotics.

Why We Treat

Antibiotics Prevent Rare but Serious Complications

Strep pharyngitis typically resolves on its own in 3 to 5 days with or without antibiotics. We treat it anyway, for four reasons: symptom duration shortens by about 16 hours, contagious period shortens dramatically, post-streptococcal complications are prevented, and transmission to household contacts is reduced.

Acute Rheumatic Fever

Rheumatic fever is the most consequential reason we treat strep. It is a delayed autoimmune response (2 to 3 weeks after pharyngitis) that can cause carditis (permanent heart valve damage), polyarthritis, chorea, subcutaneous nodules, and erythema marginatum. Incidence in the U.S. is low today but not zero, and treatment of strep pharyngitis within 9 days of onset effectively prevents it.

Post-Streptococcal Glomerulonephritis

PSGN is another delayed immune-mediated complication (1 to 3 weeks after strep), presenting with hematuria, hypertension, and edema. Unlike rheumatic fever, antibiotic treatment of pharyngitis does not reliably prevent PSGN, but early treatment limits severity and reduces the bacterial burden.

Local Complications

Peritonsillar abscess (quinsy), retropharyngeal abscess, and cervical lymphadenitis can develop from untreated or inadequately treated strep. We examine the posterior pharynx carefully, palpate neck nodes, and assess for trismus or drooling that might signal abscess requiring ENT-level drainage.

Transmission

Strep pharyngitis is highly contagious through respiratory droplets and direct contact. Within 24 hours of starting antibiotics, patients are no longer considered contagious. Household members should be tested if symptomatic; asymptomatic contacts are not treated.

Why Treat Strep

Symptom duration-16 h on avg
Contagious periodEnds in 24 h of abx
Rheumatic fever preventionEffective
Glomerulonephritis preventionPartial
Household transmissionReduced
Local abscess preventionReduced

School / Work Return

Minimum time on abx24 hours
TemperatureAfebrile without antipyretic
Toothbrush changeAfter 24 h of abx
Hand hygieneOngoing
Why TrufaMED

Why Choose TrufaMED for Strep Testing

Strep testing and treatment seems routine, and most cases are. The difference in a boutique medical clinic is testing discipline (not treating viral sore throats as strep), pediatric-appropriate culture backup, and willingness to spot the rare complication before it becomes emergent.

01 · Accreditation

Florida’s Only JC-Accredited Urgent Care

Joint Commission accreditation — the same body that accredits hospitals — audits our sterile technique, medication safety, infection control, and clinical protocols every three years.

02 · Physicians

Every Visit Includes an MD

Every patient is evaluated by a board-certified physician. Led by Dr. Uri Gedalia (Chief Medical Officer) and Dr. Shane D. Naidoo (Medical Director, Emergency Medicine). Meet them on our staff page.

03 · On-Site Lab

Rapid Antigen Plus Culture Backup

In-house rapid strep with 10-minute turnaround and pediatric culture backup through our on-site lab. We follow up with culture results by phone or portal.

04 · Pediatric Ready

Kids Ages 3+ Seen Daily

Our clinicians see children every shift. Kid-friendly swabbing, amoxicillin liquid dosing by weight, and patient-family communication that does not talk over the parent or the child.

05 · Insurance Covered

Covered by Most Major Plans

Strep evaluation and treatment is a standard urgent care visit: Aetna, Cigna, UHC, Humana, Oscar*, Medicare. Self-pay pricing quoted up front — no surprise billing.

06 · Open Seven Days

Walk In When Sore Throat Starts

Evenings and weekends — when sore throat feels at its worst and primary care is closed — are when we are open. Monday-Friday 9 AM-9 PM, Saturday 11 AM-11 PM, Sunday 12 PM-8 PM.

When ER Not UC

When Sore Throat Becomes an Emergency

Most sore throats are outpatient problems. Rarely, airway-threatening infections deep in the neck require emergency department evaluation and possibly surgical drainage.

Go to the ER or call 911 if:

  • Difficulty breathing, stridor (high-pitched noisy breathing), or inability to swallow saliva
  • Drooling or refusal to swallow in a child (possible epiglottitis)
  • Severe one-sided throat pain with muffled “hot potato” voice (peritonsillar abscess)
  • Trismus (inability to fully open the mouth) with fever
  • Neck stiffness, posterior neck pain with fever (retropharyngeal abscess)
  • Severe difficulty swallowing with dehydration not manageable by oral fluids
  • Rapid swelling of the neck or face
  • Altered mental status with pharyngitis

If you are unsure whether your symptoms are urgent-care level or ER level, come in. We triage on arrival and transfer to the ER when the airway or deep-space infection concerns warrant it. Missing an epiglottitis or peritonsillar abscess is the kind of error we build our workflow to avoid.

Frequently Asked

Strep Throat Questions

The questions our physicians answer most often about rapid strep testing and treatment.

  • Can I walk in for a strep test today?
    Yes. TrufaMED is walk-in urgent care seven days a week with rapid strep testing. A typical visit — physician evaluation, rapid test, result in 10 minutes, and a prescription if positive — takes about 25 minutes. Online check-in is available to reduce wait time.
  • How accurate is the rapid strep test?
    Rapid antigen testing is highly specific (about 95%) and moderately sensitive (70 to 90%). A positive rapid result is a true positive and we treat. A negative result in a high-probability patient — especially a child — is backed up with a throat culture that takes 24 to 48 hours. If the culture returns positive, we call and start antibiotics.
  • How fast does strep resolve with antibiotics?
    Most patients feel meaningfully better within 24 to 48 hours of the first dose. Fever typically breaks first, then the severe throat pain eases over 2 to 3 days. Contagiousness ends after 24 hours on antibiotics. Complete the full 10-day course even when you feel well — stopping early is the main driver of recurrence and transmission.
  • What antibiotic is best for strep throat?
    Penicillin V or amoxicillin for 10 days is first-line for all age groups. Cephalexin is the alternative for penicillin intolerance. True IgE-mediated penicillin allergy is managed with azithromycin or clindamycin. Group A streptococcus has never developed penicillin resistance, so it remains the default.
  • When can my child return to school?
    After 24 hours on antibiotics and afebrile without fever-reducing medication. Most children feel well enough to return on day 2 or 3 of therapy. Complete the full 10-day antibiotic course even after school return.
  • What is scarlet fever?
    Scarlet fever is strep pharyngitis plus a characteristic fine red sandpaper-textured rash, typically starting on the trunk, along with a strawberry-coated tongue and circumoral pallor. It is the same bacteria — Group A streptococcus — as classic strep, and treated identically with a 10-day course of penicillin or amoxicillin.
  • Why treat strep if it resolves on its own?
    Four reasons: symptom duration shortens by roughly 16 hours, the contagious window closes within 24 hours of starting antibiotics, rheumatic fever (a delayed autoimmune complication causing heart valve damage) is effectively prevented, and household transmission is reduced. The rheumatic fever prevention is the most important reason.
  • Can adults get strep throat?
    Yes, though the majority of strep cases are in children 3 to 14. Adults with high Centor scores (fever, tonsillar exudate, tender anterior nodes, absence of cough) are tested. A negative rapid antigen in a low-probability adult is sufficient to rule out strep; we do not routinely culture adult rapid negatives.
  • Does insurance cover strep testing?
    Yes. Strep evaluation, rapid antigen testing, throat culture, and antibiotic prescription are standard urgent care services covered by Aetna, Cigna, United Healthcare, Humana, Oscar Health*, Medicare. Self-pay welcome with pricing quoted up front.
  • Can I take antibiotics I have at home without testing?
    No — please do not. Most sore throats are viral and antibiotics do not help, they only drive resistance and cause side effects. A 10-minute rapid test tells you whether antibiotics are indicated. Starting antibiotics before testing also can render rapid and culture tests falsely negative, obscuring the diagnosis.
  • What if my rapid strep is negative but I feel terrible?
    Options: culture backup (always for children, high-probability adults); consider alternative diagnoses — mononucleosis, gonococcal pharyngitis, viral pharyngitis; symptomatic management with fluids, analgesics, and rest; return for re-evaluation if symptoms worsen or new findings appear (drooling, one-sided pain, trismus — all reasons to be seen promptly).
  • Can I walk in, or do I need an appointment?
    Walk-in, no appointment needed. We operate as urgent care seven days a week. You can also check in online through our patient portal to reserve your spot and reduce wait time. Hours: Monday through Friday 9 AM to 9 PM, Saturday 11 AM to 11 PM, Sunday 12 PM to 8 PM.
Service Area

Walk In from Surfside & Surrounding Communities

TrufaMED is at 9445 Harding Ave in Surfside — minutes from Bal Harbour, Bay Harbor Islands, Miami Beach, Sunny Isles, and Aventura. Walk in without an appointment seven days a week.

SurfsideOn site
Bal Harbour4 min
Bay Harbor Islands5 min
Miami Beach8 min
Sunny Isles Beach10 min
Aventura14 min
Location & Hours

Find Us in Surfside

9445 Harding Ave, Surfside, FL 33154 · Contact our team · Walk-in only — no appointment needed.

Monday – Friday

9 AM – 9 PM

Saturday

11 AM – 11 PM

Sunday

12 PM – 8 PM

TrufaMED is Florida’s only Joint Commission-accredited urgent care. In addition to strep throat testing, we handle the full urgent care spectrum including UTI treatment, influenza, stomach flu, migraine, and sore throat. Most insurance accepted. Self-pay patients welcome.

Insurance

Insurance Accepted

Strep throat evaluation, rapid antigen testing, culture when indicated, and antibiotic treatment are standard urgent care services covered by most major plans.

Aetna
Cigna
United Healthcare
Humana
Oscar Health*
Medicare
Self-Pay Welcome

Sore Throat? Walk In Today.

Rapid strep testing, culture backup, and first-dose antibiotic on-site when indicated. No appointment needed. Most insurance accepted.

Medical Disclaimer: Content on this page is provided for general informational purposes only and does not constitute medical advice. Sore throat presentations vary, and proper diagnosis and treatment require an in-person physician evaluation. If you are experiencing difficulty breathing, inability to swallow saliva, stridor, drooling, or any other airway or life-threatening symptom, call 911 or go to the nearest emergency department immediately. TrufaMED Urgent Care & Concierge Medicine — 9445 Harding Ave, Surfside, FL 33154. Joint Commission accredited.

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Recognizing Strep Throat Symptoms.

Strep throat produces symptoms that are often more severe than a typical viral sore throat. The onset is usually sudden, with intense throat pain that makes swallowing difficult. Many patients describe it as the worst sore throat they have experienced. Unlike viral infections, strep throat rarely causes coughing, runny nose, or sneezing, which helps distinguish it clinically.

Visual examination often reveals red and swollen tonsils, sometimes with white patches or streaks of pus. Tiny red spots called petechiae may appear on the roof of the mouth. Swollen and tender lymph nodes along the front of the neck are another hallmark sign. Fever typically reaches 101 degrees Fahrenheit or higher, and patients frequently report headache, body aches, and general malaise that feels disproportionate to just having a sore throat.

In children, strep throat may present with additional symptoms including nausea, vomiting, and abdominal pain. Some children develop a fine, sandpaper-like rash known as scarlet fever, which begins on the neck and chest before spreading. A distinctive strawberry tongue with a white coating that later turns red is another pediatric indicator. At TrufaMED, our rapid strep test provides results in under 10 minutes, allowing us to begin treatment immediately when strep is confirmed.

How We Diagnose and Treat Strep Throat.

Diagnosis at TrufaMED starts with a thorough clinical examination of the throat, tonsils, and lymph nodes. We then perform a rapid antigen detection test using a simple throat swab. This in-office test identifies Group A Streptococcus proteins with high specificity, and results are available within minutes. In cases where the rapid test is negative but clinical suspicion remains high, we can send a throat culture for definitive results within 24 to 48 hours.

Confirmed strep throat requires a full 10-day course of antibiotics, most commonly penicillin or amoxicillin. These medications are highly effective against Group A Strep and begin reducing symptoms within 24 to 48 hours of the first dose. Patients with penicillin allergies receive alternative antibiotics such as azithromycin or a cephalosporin. It is critical to complete the entire antibiotic course even after symptoms improve, as incomplete treatment increases the risk of complications and antibiotic resistance.

Beyond antibiotics, our physicians provide comprehensive symptom management guidance. Over-the-counter pain relievers such as ibuprofen or acetaminophen help reduce fever and throat pain. Warm salt water gargles, throat lozenges, and adequate fluid intake support recovery. We advise patients to rest their voice and avoid irritants like cigarette smoke and dry air. Patients become non-contagious approximately 24 hours after starting antibiotics and can typically return to work or school at that point.

Potential Complications of Untreated Strep.

Untreated strep throat can lead to serious complications that extend well beyond the throat. Rheumatic fever, though now rare in the United States, remains a risk and can cause permanent damage to the heart valves. Post-streptococcal glomerulonephritis is a kidney condition that can develop one to three weeks after infection. Peritonsillar abscess, a collection of pus behind the tonsils, causes severe one-sided throat pain and difficulty opening the mouth and often requires surgical drainage.

These complications underscore the importance of proper diagnosis and treatment. If your symptoms include difficulty breathing or swallowing, inability to open your mouth, a stiff neck, or drooling due to inability to swallow saliva, seek emergency care immediately. For typical strep throat symptoms, TrufaMED offers same-day walk-in testing and treatment to prevent complications and get you on the road to recovery quickly.

Strep Throat Prevention and Aftercare.

Group A Streptococcus spreads through respiratory droplets from coughing and sneezing, as well as through shared food, drinks, and utensils. Frequent handwashing with soap and water for at least 20 seconds is the most effective prevention measure. Avoid sharing personal items with anyone showing signs of illness, and replace your toothbrush after completing antibiotic treatment to prevent reinfection from bacteria lingering on the bristles.

In South Florida, the warm and humid climate can contribute to the spread of respiratory infections in crowded indoor spaces with heavy air conditioning. Schools, daycares, and offices are common transmission environments. If your child has strep throat, notify their school so other parents can watch for symptoms. Our TrufaMED team can provide work and school clearance notes once the 24-hour antibiotic threshold has been met.

Why Choose TrufaMED for Strep Treatment.

As one of only eight Joint Commission-accredited urgent care centers nationwide, TrufaMED maintains the highest clinical standards for diagnosis and treatment. Our rapid strep test delivers results in minutes, not days, so you leave with a confirmed diagnosis and prescription in hand. Board-certified physicians evaluate every patient, and our electronic prescribing system sends your antibiotics directly to your preferred pharmacy for immediate pickup.

Our Surfside clinic at 9445 Harding Avenue serves patients throughout Miami Beach, Bal Harbour, Bay Harbor Islands, Sunny Isles Beach, and Aventura. We are open seven days a week with no appointment necessary and maintain average wait times of approximately 15 minutes. Whether you are a parent with a sick child, an adult who needs a rapid strep test, or a visitor who developed symptoms during your trip, TrufaMED provides the fast, thorough care you deserve.

Strep Throat Treatment for Families and Children.

Children are the most commonly affected group for strep throat, with peak incidence between ages five and fifteen. At TrufaMED, our physicians are experienced in pediatric presentations and understand that treating young patients requires both clinical expertise and a reassuring bedside manner. We make the throat swab process as quick and comfortable as possible, and our child-friendly approach helps reduce anxiety for both kids and parents.

When one family member tests positive for strep, other household members are at elevated risk. We recommend that anyone in close contact who develops symptoms within the following two weeks should be tested promptly. TrufaMED can evaluate multiple family members during a single visit, streamlining the process and ensuring everyone who needs treatment receives it without delay. We also provide guidance on household disinfection and prevention measures to limit spread within the home.

For families visiting South Florida, strep throat symptoms can disrupt vacation plans significantly. Our walk-in clinic requires no appointments or referrals, accepts most insurance plans including out-of-state coverage, and provides rapid testing with same-day results. We can prescribe liquid antibiotics for young children and send prescriptions to any local pharmacy for immediate pickup.

Conveniently Located in Surfside, FL

TrufaMED Urgent Care is located at 9445 Harding Ave, Surfside, FL 33154, at the corner of Harding Avenue and 95th Street. We are just 2 minutes from Bal Harbour Shops, steps from the Surfside Community Center, and easily accessible via Collins Avenue from Miami Beach, Bal Harbour, and Sunny Isles Beach.

Guests at nearby hotels including the Four Seasons Surf Club, The St. Regis Bal Harbour Resort, and the Faena Hotel Miami Beach are just minutes away. We also serve patients from Aventura, Bay Harbor Islands, Indian Creek, and North Miami Beach.

Open 7 days a week • No appointment needed • Walk-ins welcome • (305) 614-2545