Blisters on Tongue – Cause, Symptoms & Home Remedies

The mouth is the gateway to our body. This means that most of the systemic diseases that we get have some oral manifestation. These oral signs help us to identify what is wrong with the body. One of such sign is blisters on tongue. Blisters on tongue are caused by canker sores, vitamin b12 deficiency, candidiasis, mucocele, trauma, etc.

All these causes are different and related to vitamin deficiency, stress, and fungal infections. Conventional treatment of these blisters on tongue varies from topical application of gels to taking pills.


Best home remedies for tongue blisters are saltwater rinse, application of aloe vera gel, honey, ice, etc. Also, vitamin-rich foods such as banana, avocados, etc. should be included in the daily diet plan.

Moving ahead in this article, we will read in detail different causes on blisters on tongue, symptoms, and treatment options including home remedies.

Causes of blisters on tongue

Canker sores

Canker sores are small bumps with a soft yellow or white center, seen on the tongue, the roof of the mouth or inner cheek lining. The origin of these sores mental stress and anxiety. Irritation by a prosthesis can also cause canker sores. (1)


Vitamin B12 deficiency causes red spots on the tongue. These spots are more common in females, and those with anemic tendencies, linked to low levels of iron and folic acid.


Candida albicans is a fungus that causes a disease known as candidiasis or oral thrush. Amongst the many symptoms of candidiasis, red and white patches on the tongue are common.

Oral thrush is seen on the tongue as small, red, inflamed bumps. Sometimes these may appear white when fungus covers them. Candidiasis is also a common side effect of taking strong antibiotics or can be because of a fungal infection elsewhere in the body.


A mucocele is a small lesion seen on the surface or under the surface of the tongue. It is formed because of a dysfunction in the salivary gland ducts. It is mostly harmless with a high recurrence rate. (2)


A sharp object hitting the tongue can also cause blisters. Eating or drinking something very hot can burn parts of the tongue and form ulcers over it.

Viral Infections

Herpes virus causes an infection in the mouth, more commonly around the lips. The sides of the tongue may also show small ulcer-like lesions. These are infectious and usually accompanied by fever.

Appearance and symptoms of blisters on tongue

The simplest way to describe tongue blisters is small red or white bumps. Depending on the cause, they may have a soft center which ruptures to discharge pus or sharp, well-defined margins.

Blisters can be painful if touched or if they rupture due to some sharp food. You may experience bleeding from the site or a foul smell with the discharge. Tongue movements become difficult, and denture wearing can cause further irritation.

Fever is another symptom that affects your overall health when you have an ulcer or infection on the tongue. If the cause of the blisters is due to a systemic problem, you may get rashes or itching.

In case of deficiencies, weakness and fatigue are common.

Conventional treatment of tongue blisters

Canker sores are a self-limiting condition, usually resolving in two weeks. For temporary relief from the pain, one can apply numbing jelly-like benzocaine. For vitamin deficiency, your doctor will advise you multivitamins or folic acid tablets.

Over the counter painkillers are helpful if the condition is painful. If you develop oral thrush, anti-fungal mouthwashes and lozenges are helpful. These should be taken only as prescribed by the doctor to avoid development of resistance.

Patients having herpes are prescribed anti-viral medicines. (3) As a precautionary step, you should avoid hot, spicy and acidic foods which can irritate the blister. One must avoid strong toothpaste and hard bristled toothbrushes.

Home Remedies for blisters on tongue

Saltwater rinses help to reduce the inflammation and infection if any. A teaspoon of salt in lukewarm water, taken three to four times a day is adequate.

Tea bags can also be used to soothe the blister since they are rich in tannins which are pain relievers. Aloe vera gel is soothing, and has anti-inflammatory properties, making it suitable to apply over the blisters.


Vitamin-rich foods such as bananas, avocados, and dairy products should be consumed. Some other home remedies include the application of ingredients like turmeric, ice, honey (4) and drinking milk.

Over to you on blisters on tongue

Blisters on tongue are not as severe as other oral conditions. But they can be painful and cause discomfort. Although, usually they heal on their own within a few days. But a little extra care, home remedies, and some medications can quickly help you overcome this condition.


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