Pediatrics
Sore Throat
Reviewed by the JordanMedHub Medical Editorial Team · 9/13/2026
Quick Answer
Most sore throats are caused by common viruses and clear up on their own — here's how to tell a viral sore throat from one that needs a doctor's visit, and whether it's contagious.
In this article
A sore throat — pain, scratchiness, or irritation that often worsens with swallowing — is most commonly caused by the same viruses responsible for the common cold and flu.
Is a Sore Throat Contagious?
Whether a sore throat is contagious depends entirely on its cause: viral and bacterial sore throats (including strep throat) spread easily through respiratory droplets and are contagious, while a sore throat from allergies, dry air, or acid reflux is not. As a general rule, if a cold or flu virus caused it, assume it's contagious until symptoms improve.
Common Causes
Viral infections cause the large majority of sore throats. Less commonly, bacteria (most notably group A strep, causing "strep throat") are responsible, and tend to cause more severe pain, fever, and swollen glands without a cough. Tonsillitis — inflammation specifically of the tonsils — is a related but distinct presentation, and allergies, dry indoor air, and acid reflux can also cause a sore throat unrelated to infection.
Home Care
Warm salt water gargles, throat lozenges, warm liquids like tea with honey, and staying hydrated can ease discomfort while a viral sore throat runs its course, typically within a week.
When to See a Doctor
See a doctor if a sore throat is severe, lasts more than a week, comes with a high fever, difficulty swallowing or breathing, or a rash — strep throat and other bacterial causes need antibiotic treatment and a proper test to confirm.
Seek urgent medical care
Seek emergency care right away if a sore throat comes with drooling, an inability to swallow your own saliva, or a muffled or "hot potato" voice — these can point to a rarer but serious complication such as a peritonsillar abscess or epiglottitis.
Disclaimer
This guide is for general education only and does not diagnose any individual case.
Frequently Asked Questions
Is a sore throat always contagious?
No — it depends on the cause. Viral and bacterial sore throats are contagious, but sore throats from allergies, dry air, or acid reflux are not.
How can you tell if a sore throat is strep throat?
Strep throat tends to cause more severe throat pain, fever, and swollen glands without a cough, but a proper diagnosis requires a strep test from a doctor.
Written by JordanMedHub Medical Editorial Team
Updated 9/14/2026
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