Most throat infections are caused by viruses and clear up on their own within 3 to 10 days without any specific medication. The smaller percentage caused by bacteria, most commonly group A streptococcus (strep throat), do require antibiotics. So “curing” a throat infection starts with figuring out which type you have, then matching the right approach to it.
Viral vs. Bacterial: How to Tell the Difference
This distinction matters because it determines whether you need antibiotics or just time and symptom relief. Viral throat infections tend to come packaged with other cold-like symptoms: a cough, runny nose, red eyes, headache, and sometimes a rash. If you have a sore throat plus a cough or congestion, the cause is almost certainly viral.
Bacterial strep throat looks different. It typically hits without a cough, often brings a fever above 100.4°F (38°C), and causes visible swelling or white patches on the tonsils. You may also notice tender, swollen lymph nodes along the front of your neck. Doctors use a scoring system called the Modified Centor Score to estimate the likelihood of strep. The criteria are simple: younger age (3 to 14 years), tonsillar swelling or white patches, swollen neck lymph nodes, fever above 100.4°F, and the absence of a cough. Each factor adds a point. A score of 0 to 2 means strep is unlikely and antibiotics probably won’t help. A score of 3 or 4 means testing and antibiotics are worth pursuing.
One condition worth knowing about is mononucleosis, caused by the Epstein-Barr virus. Mono can look a lot like strep throat and is sometimes initially misdiagnosed as strep. The telltale sign: the sore throat doesn’t improve after starting antibiotics. If that happens to you, your doctor may test for mono instead.
When You Need Antibiotics
If a rapid strep test or throat culture confirms a bacterial infection, the standard treatment is a 10-day course of penicillin or amoxicillin. These remain the first-line antibiotics recommended by the CDC for strep throat. Most people start feeling noticeably better within 2 to 3 days of starting treatment, but finishing the full 10 days is important. Stopping early can leave bacteria alive and increase the risk of complications.
If you’re allergic to penicillin, your doctor will choose an alternative antibiotic. The key point is that strep throat genuinely requires treatment. Left untreated, it can lead to rheumatic fever, a condition that develops 1 to 5 weeks after the initial infection and can damage the heart valves. Rheumatic fever is most common in school-age children between 5 and 15, but anyone with untreated strep is at risk. Severe rheumatic heart disease can require surgery and can be fatal.
How to Treat a Viral Throat Infection
Antibiotics do nothing for viral infections. The virus has to run its course, and your job is to manage the pain and support your body while it fights. Most viral sore throats resolve within a week, though some linger up to 10 days. Here’s what actually helps during that window.
Pain Relievers
Over-the-counter pain medication is the single most effective tool for throat pain. Ibuprofen outperforms acetaminophen for pharyngitis specifically. In clinical trials, adults taking 400 mg of ibuprofen three times daily experienced more pain relief than those taking 1,000 mg of acetaminophen three times daily. For children, the comparable doses were 10 mg/kg of ibuprofen versus 15 mg/kg of acetaminophen, and ibuprofen still came out ahead. Either option is reasonable, but if throat pain is your main complaint, ibuprofen is the stronger choice. It also reduces inflammation, which acetaminophen does not.
Salt Water Gargles
Gargling with salt water is one of those home remedies that holds up under scrutiny. A standard approach is to dissolve about half a teaspoon of table salt in a cup of warm water and gargle every few hours. Clinical research on post-surgical throat pain has shown that saline gargles reduce pain meaningfully compared to no gargling at all. Adding honey to the saline solution appears to provide even greater relief, so stirring in a spoonful of honey is worth trying.
Other Home Measures That Help
Staying well-hydrated keeps the throat moist and helps thin mucus. Warm liquids like broth, tea, or warm water with honey can be particularly soothing. Cold options work too: ice chips and cold drinks can temporarily numb throat pain. Throat lozenges or hard candy stimulate saliva production, which coats and soothes irritated tissue. Running a humidifier in your bedroom adds moisture to the air and can prevent the throat from drying out overnight, which is when many people feel worst.
Rest is not a platitude here. Your immune system works more efficiently when you’re sleeping, and pushing through a viral infection often prolongs it. If your body is telling you to sleep, listen.
Recovery Timeline
Viral throat infections typically peak around days 2 to 4 and then gradually improve over the course of a week. If you’re still getting worse after a full week, or if symptoms haven’t started improving at all, that’s a signal to get evaluated.
With bacterial strep treated by antibiotics, most people feel significantly better within 48 to 72 hours of starting medication. You’re generally no longer contagious after 24 hours on antibiotics. The full 10-day course finishes the job and prevents the infection from bouncing back or causing downstream complications.
Signs Your Throat Infection Needs Medical Attention
Certain symptoms suggest something more serious than a routine sore throat. A fever above 100.4°F combined with swollen tonsils and no cough is the classic profile that warrants a strep test. Beyond that, difficulty swallowing so severe you can’t drink fluids, trouble breathing, a muffled or “hot potato” voice, swelling on one side of the throat, or a sore throat that worsens rapidly over hours rather than days all deserve prompt evaluation. A sore throat lasting more than a week without improvement is also worth investigating, as it could point to mono, a peritonsillar abscess, or another condition that won’t resolve on its own.