This page summarises publicly available NHS information for educational purposes only. It is not medical advice or a diagnosis. Always consult a qualified healthcare professional.
What is tonsillitis?
Tonsillitis is inflammation of the tonsils, usually caused by a viral infection (like a cold or flu) but sometimes by bacteria such as strep throat. It can feel like a bad cold or flu, with red, swollen tonsils, a sore throat, problems swallowing, a high temperature, and feeling tired. Most cases clear up on their own within 3 to 7 days without antibiotics.
When NHS resources suggest seeing a GP
- Symptoms do not go away within 1 week
- You keep getting throat infections
- You have pus-filled spots on your tonsils
- Your sore throat is so painful it's difficult to eat or drink
- You have difficulty breathing, or drooling (in children)
- You have a weakened immune system
Self-care information from NHS
- Get plenty of rest
- Drink cool drinks to soothe the throat
- Take paracetamol or ibuprofen (do not give aspirin to children under 16)
- Gargle with warm salty water (adults only — children should not gargle)
- Suck lozenges, hard sweets, or ice cubes to ease soreness
- Avoid smoke and smoky places
Common questions
Is tonsillitis contagious?
The viruses and bacteria that cause tonsillitis can spread through coughs, sneezes, and shared utensils. Washing your hands and covering your mouth helps reduce the risk of passing it on.
How long is tonsillitis contagious for?
If caused by a virus, you're usually contagious for about a week. If caused by bacteria (like strep throat), you stop being contagious 24 hours after starting antibiotics.
When are antibiotics needed for tonsillitis?
Most tonsillitis is viral and does not need antibiotics. A GP may prescribe antibiotics if the infection is bacterial (strep throat), symptoms are severe, or you have a weakened immune system.
When do tonsils need to be removed?
Tonsil removal (tonsillectomy) is usually only considered if you have frequent severe episodes (7 in one year, 5 per year for 2 years, or 3 per year for 3 years) that affect your daily life.
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This page is for informational and educational purposes only. It does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about your individual situation. NorMed organises publicly available NHS information and is not affiliated with the NHS.