If you think you have strep throat, the most important step is getting tested and starting antibiotics. Strep throat is a bacterial infection that won’t reliably go away on its own, and leaving it untreated can lead to serious complications. The good news: once you start the right antibiotic, you’ll likely feel significantly better within a day or two, and you’re no longer contagious after just 12 hours of treatment.
Get Tested Before You Treat
Most sore throats are caused by viruses, not bacteria, and antibiotics won’t help a viral infection. That’s why getting a proper test matters. A rapid strep test takes about 10 to 15 minutes at a clinic or urgent care and is highly accurate, with specificity around 96%. If the rapid test comes back negative but your doctor still suspects strep, they may send a throat culture to a lab, which takes a day or two but catches cases the rapid test misses.
Doctors often use a set of clinical signs to gauge how likely your sore throat is bacterial before even testing. The factors that raise the probability include: fever above 100.4°F, swollen or pus-covered tonsils, tender swollen lymph nodes at the front of your neck, no cough, and being between ages 3 and 44. If you have most of these signs, there’s roughly a 50/50 chance it’s strep. If you have few or none, the odds drop below 5%. But even a high clinical score isn’t enough to skip the test, because treatment decisions depend on confirming the bacteria is actually there.
What Antibiotics to Expect
The standard treatment is penicillin or amoxicillin, taken for 10 days. Group A strep bacteria have no resistance to these antibiotics, making them reliably effective. Amoxicillin is often preferred for children because it tastes better in liquid form. If you’re allergic to penicillin, your doctor will choose an alternative, though some backup options like erythromycin and clindamycin face growing resistance (about 1 in 3 invasive strep strains now resist them).
The full 10-day course matters even though you’ll feel better much sooner. Stopping early allows surviving bacteria to linger, which increases the risk of the infection coming back or triggering complications. If swallowing pills is difficult, there’s also a single-shot option that a clinic can administer.
Managing Pain and Discomfort at Home
Antibiotics kill the bacteria, but they don’t immediately relieve the pain. While you wait for them to take full effect, over-the-counter pain relievers like ibuprofen or acetaminophen can reduce both throat pain and fever. Avoid giving aspirin to children or teenagers, as it’s been linked to Reye’s syndrome, a rare but dangerous condition.
Beyond medication, several simple measures help:
- Salt water gargle: Mix 1/4 teaspoon of salt in 8 ounces of warm water and gargle several times a day. This is one of the most effective home remedies for throat pain.
- Cold foods: Frozen yogurt, sherbet, and ice pops soothe inflamed tissue. Avoid acidic drinks like orange juice and anything spicy, which will make the pain worse.
- Honey: A spoonful can coat and calm the throat (but never give honey to children under 12 months).
- Fluids: Drink plenty of water. A moist throat is easier to swallow with and helps prevent dehydration, especially if you have a fever.
- Humidifier: A cool-mist humidifier adds moisture to the air and eases discomfort. Clean it daily to prevent mold buildup.
Rest is not optional here. Sleep gives your immune system its best chance to work alongside the antibiotics. Stay away from cigarette smoke, paint fumes, and strong cleaning products, all of which irritate an already inflamed throat.
When You Can Go Back to Work or School
You’re contagious through respiratory droplets (coughing, sneezing, sharing utensils) until antibiotics have been in your system for at least 12 hours. The CDC recommends staying home until you’ve been on antibiotics for 12 to 24 hours and your fever has broken. Most workplaces and schools follow this same guideline, so plan for at least one full day at home after your first dose.
During that contagious window, wash your hands frequently, don’t share cups or utensils, and replace your toothbrush once you’ve been on antibiotics for a day. These small steps protect the people around you.
Why You Shouldn’t Wait It Out
Strep throat sometimes improves on its own, but “sometimes” is a risky bet. Untreated strep can trigger rheumatic fever, which develops one to five weeks after the initial infection. Rheumatic fever causes inflammation throughout the body and can permanently damage heart valves. Severe cases require surgery and can be fatal. This complication is the primary reason strep throat is treated aggressively with antibiotics rather than managed like a common cold.
Another possible complication is a type of kidney inflammation called post-streptococcal glomerulonephritis, which can cause swelling, dark urine, and high blood pressure. Peritonsillar abscess, a pocket of pus forming near the tonsils, is another risk that sometimes requires drainage.
These complications are uncommon when strep is treated promptly, which is exactly the point. A simple 10-day course of one of the cheapest antibiotics available prevents outcomes that are far more painful, expensive, and dangerous than the infection itself.
What to Watch For After Starting Treatment
Most people notice real improvement 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 (higher fever, difficulty breathing, inability to swallow liquids, a muffled or “hot potato” voice), contact your doctor. These could signal a complication like an abscess or suggest the initial diagnosis needs another look.
If you keep getting strep throat multiple times a year, your doctor may discuss whether your tonsils are part of the problem. Recurrent strep (generally defined as seven or more episodes in a single year, or five per year over two years) is one of the recognized reasons for considering tonsil removal.