What to Do If You Have Strep Throat: Test, Treat, Heal

If you have strep throat, the most important step is getting a confirmed diagnosis and starting antibiotics as soon as possible. Antibiotics shorten the illness, stop you from spreading it to others within 12 hours of your first dose, and prevent rare but serious complications. While you wait for your appointment or for the medication to kick in, there’s plenty you can do at home to manage the pain and recover faster.

Get a Rapid Strep Test First

Strep throat can’t be reliably diagnosed by symptoms alone. A sore throat with fever, swollen tonsils, and swollen lymph nodes in the neck points toward strep, especially if you don’t have a cough (cough actually makes strep less likely). But even with all those signs present, clinical scoring systems catch fewer than half of true strep cases. The only way to know for sure is a rapid strep test or throat culture at a clinic.

This matters because most sore throats are caused by viruses, and antibiotics won’t help those. Taking antibiotics unnecessarily comes with side effects and contributes to resistance. A rapid test takes about 10 minutes, and if it’s positive, your provider can write a prescription on the spot.

How Antibiotics Work for Strep

The standard treatment is a 10-day course of penicillin or amoxicillin. These are the preferred options because they’re effective, inexpensive, and well tolerated. The full 10 days matters: even though you’ll start feeling better within a day or two, stopping early lets the bacteria survive and increases the chance of complications or relapse.

If you’re allergic to penicillin, your provider has several alternatives depending on the type of allergy. For mild allergies (rash but no breathing problems or swelling), a related class of antibiotics called cephalosporins is typically safe. For more severe allergies, options include azithromycin or clindamycin. Make sure your provider knows about any past reactions so they can choose the right one.

You stop being contagious roughly 12 hours after your first antibiotic dose. That’s the benchmark most schools, daycares, and workplaces use for return. If you or your child still has a fever at that point, wait until the fever breaks before going back.

Managing Pain and Symptoms at Home

Antibiotics kill the bacteria, but they don’t do much for the sore throat pain in the short term. Over-the-counter pain relievers like ibuprofen (Advil, Motrin) or acetaminophen (Tylenol) are your best tools for reducing throat pain and fever. Ibuprofen also reduces inflammation, which can help with the swelling that makes swallowing painful. One important note for children and teenagers: never give aspirin, as it’s linked to Reye’s syndrome, a rare but dangerous condition.

Beyond medication, a few simple strategies help:

  • Warm liquids. Tea, broth, and warm water with honey soothe the throat. Honey has mild antibacterial properties and coats irritated tissue. (Skip honey for children under one year old.)
  • Cold foods. Popsicles, ice chips, and cold water can numb throat pain temporarily.
  • Salt water gargle. Half a teaspoon of salt in a cup of warm water, gargled and spit out, can reduce swelling and discomfort. This works for older children and adults.
  • Hydration. Pain makes people drink less, which leads to dehydration and makes the throat feel worse. Small, frequent sips are easier than large gulps.
  • Rest. Your body is fighting a bacterial infection. Sleep and downtime genuinely speed recovery.

Avoid acidic or spicy foods, which irritate an already raw throat. Soft foods like scrambled eggs, yogurt, mashed potatoes, and smoothies are easier to get down during the worst of it.

What Happens if Strep Goes Untreated

Most people recover from strep throat even without antibiotics, but the risks of skipping treatment aren’t worth it. The most concerning complication is rheumatic fever, which can develop one to five weeks after a strep infection. Rheumatic fever causes inflammation throughout the body, and if it isn’t treated promptly, it can permanently damage the heart valves. This is the main reason antibiotics are recommended for confirmed strep, not just to shorten the illness.

Other potential complications include a peritonsillar abscess (a painful pocket of pus behind the tonsils that may need to be drained), kidney inflammation, and the infection spreading to the sinuses or ears. These complications are uncommon with proper antibiotic treatment, which is exactly why finishing the full course matters even after you feel better.

Preventing Spread to Others

Strep spreads through respiratory droplets, so coughing, sneezing, and sharing food or drinks can pass it along. During the first 12 hours of antibiotic treatment and any time before you start antibiotics, you’re highly contagious. Wash your hands frequently, don’t share utensils or drinking glasses, and cover coughs and sneezes.

Replace your toothbrush once you’ve been on antibiotics for a couple of days. Strep bacteria can survive on toothbrush bristles and potentially reinfect you. This applies to electric toothbrush heads too. If you use a toothbrush holder that puts brushes in contact with each other, separate yours from the rest of the household while you’re sick.

When to Go Back to the Doctor

Most people feel noticeably better within 48 hours of starting antibiotics. If your symptoms haven’t improved at all after two to three days, or if they’re getting worse, contact your provider. This could mean the bacteria aren’t responding to the antibiotic you were prescribed, or the diagnosis may need to be reconsidered. A fever that returns after initially going away, difficulty breathing or swallowing, or inability to open your mouth fully are signs that need prompt attention, as they may indicate a complication like an abscess.

Recurring strep infections (multiple episodes per year) are a separate issue worth discussing with your provider, as the management approach changes when strep keeps coming back.