What makes blisters in your mouth

Pemphigus vulgaris Bullous pemphigoid is an autoimmune disorder that occurs when the immune system attacks the skin and causes blistering Not all mouth sores require immediate evaluation by a doctor. In people with mouth sores, certain symptoms and characteristics are cause for concern for systemic disorders. They include. People who have warning signs should see a doctor right away.

All people with a sore that lasts for 10 days or more must be examined by a dentist or doctor to ensure that the sore is not cancerous or precancerous. Doctors first ask questions about the person's symptoms and medical history.

Doctors ask people about their consumption of or exposure to food, drugs, and other substances such as tobacco, chemicals, toothpaste, mouthwashes, metals, fumes, or dust. Doctors need to know about all currently known conditions that might cause mouth sores such as herpes simplex Herpes Simplex Virus HSV Infections Herpes simplex virus infection causes recurring episodes of small, painful, fluid-filled blisters on the skin, mouth, lips cold sores , eyes, or genitals.

Doctors then do a physical examination. The mouth is inspected, noting the location and nature of any sores. Doctors then do a general examination to look for signs of systemic disorders that could affect the mouth. The skin, eyes, and genitals are examined for any sores, blisters, or rashes. What doctors find during the history and physical examination often suggests a cause of the mouth sores and the tests that may need to be done. The need for tests depends on what doctors find during the history and physical examination, particularly whether warning signs are present.

People with a brief episode of mouth sores and no symptoms or risk factors for a systemic illness probably require no testing. In people with several episodes of mouth sores, viral and bacterial cultures and various blood tests are done. A biopsy may be done for persistent sores that do not have an obvious cause.

Eliminating foods from the diet one at a time or changing brands of toothpaste, chewing gum, or mouthwash can be useful to determine whether a specific food or mouth care product is causing the sores. Doctors treat the cause, if known. For example, people are given antibiotics for bacterial infections. Avoiding any substances or drugs that are causing the mouth sores is recommended. Frequent, gentle toothbrushing with a soft brush and salt-water rinses may help keep sores from becoming infected.

Pain can be helped by avoiding acidic or highly salty foods and any other substances that are irritating. Topical treatments are substances applied directly to an affected part of the body. Topical treatments for mouth sores include. An anesthetic such as dyclonine or lidocaine may be used as a mouth rinse. However, because these mouth rinses numb the mouth and throat and thus may make swallowing difficult, children using them should be watched to ensure that they do not choke on their food.

Lidocaine in a thicker preparation viscous lidocaine can also be swabbed directly on the mouth sore. Protective coatings containing sucralfate and aluminum-magnesium antacids can be soothing when applied as a rinse.

Amlexanox paste is another alternative. Tissue Trauma or Irritation. If you have a broken filling or sharp tooth, they can very easily cut into your mouth tissue, causing you to have a blister. Similarly, poorly fitted dentures or braces can cause a similar problem. A study in Trauma in Dentistry also notes that chronic biting of your cheeks or lips can cause lesions. Accidental biting of your lip or cheek might also cause a mouth blister. Tissue Burn. The Trauma in Dentistry study points out that thermal burns in the mouth are highly prevalent amongst children and young patients.

Cold Sores. These are caused by the herpes simplex virus and are very contagious. They will begin as blisters and then crust over. Canker Sores. They can look like a pale or yellow ulcer appearing in your mouth with a red outer ring.

You may see one or several of them. Unfortunately, we don't know the exact cause of canker sores. Still, they have several risk factors and triggers, including hormone changes, stress, a weakness in your immune system, or a lack of certain vitamins and minerals in your diet.

You can even develop mouth sores on your esophagus, the tube leading to your stomach. Mouth sores, which include canker sores, are usually a minor irritation and last only a week or two. In some cases, however, they can indicate mouth cancer or an infection from a virus, such as herpes simplex. Different conditions can cause mouth sores. Here is a list of 13 possible causes. Warning: Graphic images ahead. Read full article on cold sores. Read full article on gingivomatitis.

Read full article on infectious mononucleosis. Read full article on canker sores. Read full article on folate deficiency. Read full article on hand, foot, and mouth disease. Read full article on leukoplakia. Read full article on oral lichen planus. Read full article on celiac disease. Read full article on mouth cancer. Read full article on pemphigus vulgaris.

In most cases, mouth sores cause some redness and pain, especially when eating and drinking. They can also cause a burning or tingling sensation around the sore.

Depending on the size, severity, and location of the sores in your mouth, they can make it difficult to eat, drink, swallow, talk, or breathe. The sores may also develop blisters. They are very contagious. Often, you will have tenderness, tingling, or burning before the actual sore appears. Cold sores most often begin as blisters and then crust over.

The herpes virus can live in your body for years. It only appears as a mouth sore when something triggers it, such as:. Canker sores are not contagious. They may look like a pale or yellow ulcer with a red outer ring. You may have one, or a group of them.

Women seem to get them more than men. The cause of canker sores is not clear. It may be due to:. Less commonly, mouth sores can be a sign of an illness, tumor, or reaction to a medicine.

This can include:. Drugs that may cause mouth sores include aspirin, beta-blockers, chemotherapy medicines, penicillamine, sulfa drugs, and phenytoin. Mouth sores often go away in 10 to 14 days, even if you do not do anything.

They sometimes last up to 6 weeks. The following steps can make you feel better:. Over-the-counter medicines, such as Orabase, can protect a sore inside the lip and on the gums.