Most sore throats are caused by viral infections and will clear up on their own within a week to ten days. Between 50% and 80% of sore throats are viral, meaning antibiotics won’t help. The key question is figuring out whether yours falls into that majority or whether something else is going on that needs attention.
What’s Causing It
The likeliest culprit is a common cold or another viral infection. These sore throats tend to come with a runny nose, cough, sneezing, or mild body aches. You might feel generally run down, but the throat pain is usually just one part of a bigger picture.
Strep throat, caused by Group A Streptococcus bacteria, accounts for roughly 5% to 36% of sore throat cases depending on the population and time of year. Strep tends to hit differently: sudden onset of pain, fever at or above 100.4°F, swollen lymph nodes in the front of your neck, and white patches or pus on your tonsils. Notably, strep usually comes without a cough. If you have a bad cough along with your sore throat, strep is less likely.
Several non-infectious causes are worth considering too. Postnasal drip is one of the most common. When excess mucus from allergies or sinus irritation drips down the back of your throat, it causes persistent soreness and a feeling of needing to clear your throat constantly. This is especially common in people with dust mite, pollen, or pet dander allergies.
Acid reflux can also cause a sore throat, even without the classic heartburn sensation. When stomach contents travel up past the upper part of the esophagus, acid and digestive enzymes irritate the throat lining directly. This type of sore throat often comes with hoarseness, a persistent cough, excess throat mucus, and a sensation of something stuck in your throat (sometimes called a lump-in-the-throat feeling). It tends to be worse in the morning or after meals.
Dry indoor air is another overlooked trigger. Indoor humidity below 40% dries out your mucous membranes and can leave your throat raw, particularly during winter months or in air-conditioned offices. The optimal indoor humidity range is 40% to 60%.
How Long It Should Last
With a viral sore throat, symptoms typically peak between days three and five, then gradually improve and resolve by day ten. If your throat pain is getting worse after that first week rather than better, or if it hasn’t improved at all by day ten, something other than a standard virus may be at play.
Sore throats caused by allergies or reflux follow a different pattern entirely. They tend to linger for weeks or recur in cycles, often without fever. If your sore throat keeps coming back or never fully goes away, those non-infectious causes are worth investigating.
What Helps at Home
Honey is one of the most effective home remedies, and clinical evidence backs this up. A systematic review combining data from multiple studies found that honey reduced both cough frequency and cough severity compared to standard care, and improved overall symptom scores in upper respiratory infections. A spoonful on its own or stirred into warm tea coats the throat and provides temporary relief. (Don’t give honey to children under one year old.)
Saltwater gargles are another reliable option. Dissolve half a teaspoon of table salt in one cup of warm water and gargle for 15 to 30 seconds, then spit it out. The salt draws excess fluid from swollen throat tissue, reducing inflammation temporarily. You can repeat this several times a day.
Staying hydrated matters more than people realize. Warm liquids like broth, tea, or even plain warm water soothe irritated tissue and keep your throat from drying out further. Cold liquids and popsicles can also numb the pain briefly. Dry air makes everything worse, so running a humidifier in your bedroom, especially at night, helps keep your throat from drying out while you sleep.
Over-the-counter pain relievers like acetaminophen or ibuprofen are effective for managing throat pain. Ibuprofen has the added benefit of reducing inflammation. Throat lozenges and sprays containing mild numbing agents can provide short-term relief between doses.
Viral vs. Strep: How to Tell
Doctors use a simple checklist to estimate the likelihood of strep. Four features point toward a bacterial infection: fever of 100.4°F or higher, no cough, swollen or tender lymph nodes at the front of the neck, and swollen tonsils with white patches. The more of these you have, the higher the chance of strep. If you have none or only one, strep is unlikely and testing may not even be necessary.
When strep is suspected, a rapid strep test gives results in minutes. These tests are about 86% sensitive, meaning they correctly identify strep roughly six out of seven times. They’re highly specific though, at about 95%, so a positive result is reliable. If the rapid test is negative but your symptoms strongly suggest strep, a throat culture (which takes one to two days) can catch the cases the rapid test misses.
This distinction matters because strep throat is one of the few sore throats that genuinely needs antibiotics. Untreated strep can, in rare cases, lead to complications affecting the heart or kidneys. When antibiotics are prescribed for strep, the standard course is 10 days, and it’s important to finish the full course even once you start feeling better.
Signs That Need Medical Attention
Most sore throats are a nuisance, not an emergency. But certain symptoms signal something more serious. Get medical attention if you experience difficulty breathing, difficulty swallowing (especially if you can’t swallow your own saliva), blood in your saliva or phlegm, signs of dehydration, joint swelling and pain, or a new rash. In young children, excessive drooling can indicate severe throat swelling.
A sore throat that steadily worsens over several days rather than improving, or one that’s only on one side, can indicate a peritonsillar abscess, which is a pocket of infection near the tonsils that needs drainage. A muffled or “hot potato” voice along with severe throat pain is another red flag for this condition. Any sore throat lasting longer than two weeks without improvement deserves a doctor’s evaluation to rule out less common causes.