Strep throat is treated with antibiotics, typically a 10-day course of penicillin or amoxicillin. Most people start feeling better within a day or two of starting treatment, but finishing the full course is essential to clear the infection and prevent rare but serious complications like rheumatic fever and kidney inflammation.
Antibiotics Are the Primary Treatment
Penicillin and amoxicillin are the first-choice antibiotics for strep throat. Amoxicillin is often preferred for children because it tastes better and can be taken once daily. Both require a full 10-day course, even though symptoms usually improve much sooner. The 10-day duration is the standard because shorter courses don’t reliably eliminate the bacteria from the throat, which raises the risk of the infection returning or triggering complications.
For people who can’t take penicillin-type drugs due to an allergy, alternatives include cephalosporin antibiotics (as long as the allergy isn’t the severe, immediate type) or macrolide antibiotics like erythromycin. These alternatives also run for 10 days. Your doctor will choose the right option based on the type of allergic reaction you’ve had in the past.
In some cases, a single injection of penicillin can replace the 10-day oral course entirely. This is a good option when there’s concern about someone not finishing the full round of pills.
When You Can Go Back to Normal
Strep throat spreads through respiratory droplets, so you’re contagious until you’ve been treated. Once you’ve been on antibiotics for at least 24 hours and no longer have a fever, you can return to work, school, or daycare without worrying about infecting others. Before that 24-hour mark, keep your distance from others and avoid sharing utensils or drinks.
Managing Pain While Antibiotics Work
Antibiotics kill the bacteria, but they don’t do much for the throat pain in those first couple of days. Over-the-counter pain relievers like ibuprofen or acetaminophen are the most effective way to reduce both the soreness and any fever. Avoid giving aspirin to children or teenagers, as it’s been linked to Reye’s syndrome, a rare but dangerous condition.
Several home remedies can also help:
- Salt water gargle: Mix about 1/4 teaspoon of table salt in 8 ounces of warm water and gargle several times a day. This works well for older children and adults.
- Cold foods: Frozen yogurt, sherbet, and frozen fruit pops can soothe an inflamed throat.
- Honey: A spoonful can coat and calm the throat (not for children under one year old).
- Avoid irritants: Spicy foods, acidic drinks like orange juice, cigarette smoke, and strong chemical fumes all make throat pain worse.
Why Finishing the Full Course Matters
It’s tempting to stop taking antibiotics once you feel better, which often happens around day two or three. But stopping early leaves bacteria behind. This can lead to a rebound infection that’s harder to treat, and it increases the risk of complications. Rheumatic fever, which can permanently damage the heart and even cause stroke, is the most concerning. Kidney inflammation is another possibility. Both are rare but preventable with a completed antibiotic course.
Children under two or three have a much lower risk of rheumatic fever, which is one reason doctors are less likely to test for or diagnose strep in that age group. For school-age children, teenagers, and adults, though, the risk is real enough that treatment is always recommended once strep is confirmed.
What Happens With Recurring Infections
Some people, especially children, get strep throat repeatedly. If that happens, your doctor may try a different antibiotic or look at whether someone in the household is carrying the bacteria without symptoms and reinfecting others.
Tonsillectomy becomes an option when infections are frequent and severe. The clinical threshold that doctors commonly reference is 7 or more documented episodes in a single year, 5 or more per year for two consecutive years, or 3 or more per year for three consecutive years. Some guidelines use a lower bar of 3 or more infections per year despite adequate treatment. Tonsillectomy doesn’t eliminate the possibility of strep entirely, since the bacteria infect throat tissue beyond the tonsils, but it significantly reduces how often infections occur.
Getting the Right Diagnosis First
Not every sore throat is strep. Most sore throats are caused by viruses, which antibiotics won’t help. Strep throat tends to come on suddenly with intense throat pain, fever, swollen lymph nodes in the neck, and sometimes white patches on the tonsils. It usually does not come with a cough, runny nose, or hoarseness, which point more toward a viral infection.
A rapid strep test takes about 5 to 10 minutes and can be done in a doctor’s office or urgent care clinic. If the rapid test is negative but the doctor still suspects strep, a throat culture can confirm the diagnosis within a day or two. Starting antibiotics promptly after a positive test gives you the fastest relief and shortens the window during which you can spread the infection to others.