Strep throat is treated with antibiotics, typically a 10-day course of penicillin or amoxicillin. While antibiotics clear the infection and prevent complications, you can manage pain at home with over-the-counter painkillers, salt water gargles, and rest. Most people feel significantly better within two to three days of starting treatment.
How Strep Throat Is Diagnosed
Not every sore throat is strep. Doctors use a scoring system based on five factors: your age, whether you have swollen lymph nodes in your neck, whether you have a cough, your temperature, and whether there’s white or yellow coating on your tonsils. A higher score means strep is more likely, while a lower score (especially if you have a cough, which points toward a virus) means testing and antibiotics probably aren’t needed.
If your symptoms suggest strep, you’ll get a rapid strep test. This involves a quick swab of the back of your throat and returns results in minutes. Rapid tests are highly accurate when they come back positive, with specificity around 96%. If the rapid test is negative but your doctor still suspects strep, a throat culture can confirm the result, though it takes a day or two to come back.
Antibiotic Treatment
Penicillin and amoxicillin are the first-choice antibiotics for strep throat. They’re effective, inexpensive, and Group A Strep bacteria have not developed resistance to them. The standard course lasts 10 days. Adults typically take penicillin twice daily, while children often take amoxicillin once or twice daily. If you have a penicillin allergy, your doctor will prescribe an alternative.
It’s important to finish the full 10 days even though you’ll feel better much sooner. Stopping early increases the risk of the infection coming back and of more serious complications developing. For people who may have trouble completing a full oral course, a single injection of penicillin is an option that eliminates the need to remember daily pills.
You become non-contagious within 12 hours of your first antibiotic dose. That’s the standard cutoff for returning to school or work: 12 hours on antibiotics and no fever.
Pain Relief and Home Care
Antibiotics kill the bacteria, but they don’t do much for the immediate pain. For throat soreness and fever, ibuprofen or acetaminophen are your best options. Either one works well, and you can alternate between the two if needed.
Salt water gargles are a simple, effective way to reduce throat pain. Mix 1/4 teaspoon of table salt into 8 ounces of warm water and gargle several times a day. This works for older children and adults but isn’t practical for young kids who can’t gargle without swallowing. Other things that help: cold foods like popsicles or ice chips to numb the throat, warm liquids like broth or tea with honey (for children over age one), and a humidifier to keep the air moist. Stay hydrated even if swallowing hurts, because dehydration will make you feel worse overall.
Rest matters more than people give it credit for. Your body is fighting an active bacterial infection, and pushing through it can prolong your recovery.
Why Antibiotics Matter for Strep
Strep throat can resolve on its own in many cases, which raises a fair question: why bother with antibiotics? The answer is complications. Untreated strep can lead to rheumatic fever, a serious inflammatory condition that develops one to five weeks after the initial infection. Rheumatic fever can damage heart valves, sometimes severely enough to require surgery. It can also cause joint pain, skin rashes, and involuntary movements.
Another potential complication is a kidney condition called post-streptococcal glomerulonephritis, where the immune response to the bacteria damages the kidneys’ filtering units. Peritonsillar abscess, a painful pocket of pus near the tonsils, is also more likely when strep goes untreated. Antibiotics dramatically reduce the risk of all of these outcomes, shorten how long you’re contagious, and help you recover faster.
When Strep Keeps Coming Back
Some people, especially children, get strep throat repeatedly. If that’s your situation, there are specific thresholds doctors use to decide whether tonsillectomy makes sense. Surgery may be considered if you’ve had at least 7 episodes in one year, at least 5 episodes per year for two consecutive years, or at least 3 episodes per year for three consecutive years. Each episode needs to be documented with at least one clinical sign: fever above 101°F, swollen neck glands, tonsillar coating, or a positive strep test.
Below those thresholds, the recommended approach is watchful waiting, because most children naturally outgrow frequent strep infections. Tonsillectomy may also be considered outside these strict numbers in certain situations, like repeated infections bouncing between family members in the same household, a history of peritonsillar abscess, or a personal or family history of rheumatic heart disease.
What to Expect During Recovery
Most people notice improvement within 48 to 72 hours of starting antibiotics. Fever usually breaks within the first day. Throat pain lingers a bit longer but steadily improves. If you’re not feeling better after three days on antibiotics, or if your symptoms get worse at any point, that warrants a follow-up visit. It could mean the infection isn’t responding as expected, or the diagnosis may need to be reconsidered.
During recovery, replace your toothbrush after you’ve been on antibiotics for 24 hours. Avoid sharing cups, utensils, or food with others in your household for at least the first 12 hours of treatment. Strep spreads through respiratory droplets, so sneezing and coughing into your elbow and frequent handwashing protect the people around you.