Strep throat requires antibiotics to fully clear the infection. Unlike a regular sore throat caused by a virus, strep is a bacterial infection that won’t resolve on its own and can lead to serious complications if left untreated. The good news: most people start feeling better within a day or two of starting medication, and there’s plenty you can do at home to manage the pain while you recover.
How to Tell if It’s Strep or a Virus
Most sore throats are caused by viruses, not bacteria, and they don’t need antibiotics. A few clues can help you figure out which you’re dealing with before you head to a clinic.
Viral sore throats typically come with a cough, runny nose, hoarseness, or pink eye. Strep throat usually doesn’t cause any of those. Instead, strep tends to hit fast with intense throat pain, painful swallowing, fever, and swollen lymph nodes in the neck. You might also see white patches or red spots on the roof of your mouth.
The only way to confirm strep is with a rapid strep test or throat culture at a clinic. This matters because taking antibiotics for a viral infection won’t help and can contribute to antibiotic resistance, while skipping antibiotics for true strep can lead to complications.
Antibiotics Are the Core Treatment
Penicillin or amoxicillin is the first-choice antibiotic for strep throat. Both are effective, inexpensive, and have a long track record. The standard course is 10 days, and finishing every dose is important even after you feel better. Stopping early can allow the bacteria to survive and potentially cause a relapse or complications.
If you’re allergic to penicillin, your provider will prescribe an alternative. Several other antibiotics work well against strep, so an allergy isn’t a barrier to treatment.
Once you start antibiotics, you’re generally no longer contagious within 12 hours of your first dose. That’s the threshold most schools and workplaces use for when you can return. Symptom-wise, most people notice significant improvement within one to two days of starting treatment, though some lingering soreness is normal for the first few days.
Managing Pain and Discomfort at Home
Antibiotics kill the bacteria, but they don’t do much for the throat pain itself. Over-the-counter pain relievers like ibuprofen (Advil, Motrin) or acetaminophen (Tylenol) are the most effective way to reduce both pain and fever. Avoid giving aspirin to children or teenagers, as it’s been linked to Reye’s syndrome, a rare but serious condition.
Gargling with warm salt water several times a day can also help. Mix about 1/4 teaspoon of table salt into 8 ounces of warm water. This works for older children and adults but isn’t practical for young kids who can’t gargle and spit reliably.
Staying hydrated is more important than it might seem. A sore, swollen throat makes swallowing painful, which often leads people to drink less. Sipping water throughout the day keeps the throat moist and makes swallowing easier. Warm broths and cold foods like frozen yogurt, sherbet, or frozen fruit pops can be especially soothing.
When it comes to eating, stick with soft foods that won’t irritate your throat: soups, applesauce, mashed potatoes, yogurt, cooked cereal, and soft-cooked eggs. You can blend foods if even soft textures feel rough going down. Avoid spicy or acidic foods like orange juice, which can make the pain worse.
Honey can also help coat and soothe a raw throat, though it should never be given to children under one year old.
What Happens if Strep Goes Untreated
Strep throat isn’t just an uncomfortable few days. Left untreated, it can trigger rheumatic fever, a serious inflammatory condition that can develop one to five weeks after the initial infection. Rheumatic fever can cause joint pain, skin rashes, and involuntary movements, but the real danger is to the heart. It can weaken the valves between the heart’s chambers, a condition called rheumatic heart disease. Severe cases may require heart surgery and can be fatal.
Untreated strep can also cause kidney inflammation, abscesses around the tonsils, and ear or sinus infections. These complications are largely preventable with a straightforward course of antibiotics, which is why getting tested and treated promptly matters so much.
Preventing Reinfection and Spread
Strep spreads through respiratory droplets, so close contact with someone who’s infected is the primary route. While you’re sick and in those first 12 hours on antibiotics, avoid sharing utensils, cups, or food. Wash your hands frequently, especially after coughing or sneezing.
If anyone in your household shares a toothbrush holder, replace all the toothbrushes in that holder to avoid passing the bacteria back and forth. For your own toothbrush, rinsing it under cold running water after each use and storing it upright and uncovered helps reduce bacterial buildup. Some evidence suggests hydrogen peroxide rinses can further reduce bacteria on bristles. As a general rule, toothbrushes should be replaced every three to four months or whenever the bristles start to fray.
Strep can circulate within families and classrooms, so if one person in your household tests positive and others develop symptoms, they should be tested too rather than assumed to have the same virus going around.