Published by Bupa's health information team, February 2008.
This factsheet is for people who have tonsillitis, or who would like information about it.
Tonsillitis is the reaction your tonsils have to infection. Tonsillitis affects people of all ages but it's more common in children.
The tonsils are small glands at the back of your throat. They are lymph organs and are part of the lymphatic system. The tonsils are thought to help your body fight infection when you are young. However, they are less involved with fighting infection as you get older.

The position of the tonsils
Tonsillitis is inflammation of your tonsils. It's caused by a viral or bacterial infection. There are many viruses and bacteria that cause tonsillitis. They include the influenza (flu) virus, the Epstein-Barr virus (glandular fever) and group A beta haemolytic Streptococcus bacteria.
If you have tonsillitis you may have some of the following symptoms:
You may also notice that:
Tonsillitis can cause complications such as:
The virus or bacterium causing the infection can be passed between people. For example if you are in direct contact (eg kissing) with an infected person, or you are near them when they cough or sneeze. The droplets of infected mucus or saliva suspended in the air can then be breathed in by you.
If you visit your GP, they will ask about your symptoms and examine you. They may also ask you about your medical history. A blood test may be done to rule out infections such as glandular fever, which is caused by a different virus.
Your infection may be mild and you may not need treatment. There are several things you can do to help yourself feel better.
Before taking any medicines ask your pharmacist for advice. Follow the instructions in the patient information leaflet that comes with the medicine.
Paracetamol is an effective painkiller for tonsillitis. Soluble paracetamol held in the mouth can have a longer lasting effect on pain than non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen. Adults and children over 14 may choose to gargle soluble aspirin.
For more information, please see Related topics.
Benzydamine hydrochloride (eg Difflam) mouthwash or spray may also help to relieve pain associated with tonsillitis.
Most sore throats will get better within a week and don't need antibiotics. If you visit your GP they may prescribe antibiotics for five to 10 days, depending on the type of infection you have. Antibiotics can only be used to treat bacterial infections. Penicillin is usually prescribed for tonsillitis; if you are allergic to penicillin, erythromycin may be given. It's important to only take antibiotics if they are needed and to complete the course prescribed to you, to prevent antibiotic resistance developing.
If you have tonsillitis more than five times a year or you have had symptoms for more than a year, and your tonsillitis stops you doing normal activities, your doctor may suggest you have your tonsils removed. This procedure is called a tonsillectomy. Before you choose this treatment you should discuss it with your doctor as the operation also has complications.
For more information on tonsillectomy, please see Related topics.
As young children get older, throat infections occur less often so they may not need surgery. Ask your doctor for advice.
This information was published by Bupa's health information team and is based on reputable sources of medical evidence. It has been peer reviewed by Dr James Quekett, Bsc MB ChB MRCGP DRCOG DFFP, partner/principal general practitioner at Rowcroft Medical Centre, and by Bupa doctors. The content is intended for general information only and does not replace the need for personal advice from a qualified health professional.
Publication date: February: 2008.