Canker Sore on Tonsil

Unlike ulcers on the soft tissue in the mouth, a canker sore on the tonsil has a different cause, usually occurring due to an allergic reaction. If a person allergic to a certain food or medication ingests that certain item, a small or big ulcers on the tonsil is likely to form.


Foods that commonly cause these reactions are strawberries and tomatoes because of their high acidity levels. Shellfish can also to be blamed for canker sores on the left tonsil or on the right tonsildepending on the location of the damaged tissue.


If a medication is the cause for the reaction, it is crucial to consult a doctor since stopping a medication might be more detrimental than preventing the ulceration.

medication is the cause for the reaction

Poor oral health can also cause a canker sore on the tonsil. If a person does not brush their teeth and floss regularly they subject their mouth to excess bacteria. These bacteria grow due to the leftover food particles stuck in their teeth or residue on their tongue.

These bacteria can adhere to damaged tissue on the tonsils and create ulcerations.That being said, ingredients found in toothpastes may cause allergic reactions which can cause ulcerations on the tonsils.


The symptoms that come with normal canker are pain and discomfort, a burning sensation prior to the sore forming, and a white, gray, or yellow ulcer with red edges. The symptoms of a ulceration on the tonsil are the same.

A fever, swollen glands, and general fatigue or malaise can also accompany canker sores in severe cases. This also stands true for a canker sore on the tonsil.

Related Problems


A canker sore on the tonsil and ear pain may be related. This is due to the way the ears, eyes, nose, and throat are put together. If the ulceration is deep in the throat or on the tonsil, it is normal for a person to experience an earache when they swallow. Also, they can experience general ear pain at all times until the sore heals.

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The sufferer may want to consult a doctor in order to get a prescription medication if the pain proves to be too strong to wait out the canker.

A canker sore on the tonsil and a fever can also be related. Fevers can occur during the manifestation of any ulceration, although it is rare.In this case, a viral infection may be to blame.If the fever becomes high, it may be necessary to see a doctor to control this symptom.


TreatmentsTreating a ulcer can be done with prescription medications like corticosteroids, over-the-counter medications like anesthetic gels and liquids, or home remedies made from different ingredients.

Over-the-counter gels and liquids along with certain home remedies may not apply to treating canker sores on the tonsil because it may be impossible for a person to reach the swelling and apply the gel, liquid, or paste.

In these cases,  it may be wise to stick with homemade mouthwashes or store-bought antiseptics.

A canker sore on the tonsil and ear pain may be relatedA popular homemade mouthwash consists of equal parts of an antihistamine and an antacid. If using this method, swish the mixture around the mouth making certain to coat the affected area.

Be careful not to swallow this mix as it can cause internal problems. It is best to avoid this treatment if the sore is too far back to avoid swallowing.

Two safer methods consideredeffective are mouthwashes made from hydrogen peroxide and water, or salt in warm water; both are suitable for their analgesic and antiseptic properties.

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