Aphthous ulcers, also known as canker sores, are painful lesions that develop on the soft tissues inside the mouth. They are non-contagious and usually clear up on their own within a week or two. These ulcers can make eating and talking uncomfortable, but they are generally harmless.

Aphthous Stomatitis FAQ


What causes aphthous ulcers?

The exact cause is often unknown, but factors such as stress, hormonal changes, and certain foods can trigger the development of aphthous ulcers.

Are aphthous ulcers contagious?

No, aphthous ulcers are not contagious and cannot be spread from person to person.

How long do aphthous ulcers last?

Usually, aphthous ulcers clear up on their own within one to two weeks.

Are there any effective treatments for aphthous ulcers?

Yes, there are several medications and topical treatments available that can help to reduce pain and promote healing of aphthous ulcers.

Can I buy medications for aphthous ulcers without a prescription?

Yes, there are over-the-counter medications and remedies that can be purchased without a prescription to help alleviate the discomfort caused by aphthous ulcers.

What are the best ways to relieve the pain of aphthous ulcers?

Using topical numbing agents, avoiding spicy and acidic foods, and maintaining good oral hygiene can help to relieve the pain of aphthous ulcers.

Can aphthous ulcers be a sign of a more serious medical condition?

In some cases, aphthous ulcers can be associated with underlying medical conditions such as autoimmune diseases or nutritional deficiencies. It's important to seek medical attention if ulcers are unusually large, persistent, or accompanied by other concerning symptoms.

Are there any lifestyle changes that can help prevent aphthous ulcers?

Maintaining a healthy diet, managing stress, and avoiding known trigger foods can help reduce the frequency of aphthous ulcer outbreaks.

Do aphthous ulcers only occur in the mouth?

While aphthous ulcers commonly occur in the mouth, they can also develop on the soft tissues of the throat and the genital area.

Can children get aphthous ulcers?

Yes, aphthous ulcers can develop in children, although they are more common in older individuals.

For some individuals, certain food allergies or sensitivities can trigger the development of aphthous ulcers.

Can smoking make aphthous ulcers worse?

Smoking can irritate the mouth and may exacerbate the discomfort of aphthous ulcers, so quitting smoking or avoiding exposure to secondhand smoke can be beneficial.

What should I do if an aphthous ulcer does not heal?

If an aphthous ulcer does not show signs of improvement after two weeks or if it is unusually large, it's important to consult a healthcare professional for further evaluation and appropriate treatment.

Is it necessary to avoid certain foods during an aphthous ulcer outbreak?

Spicy, acidic, and rough-textured foods can further irritate aphthous ulcers, so it may be beneficial to avoid them until the ulcers have healed.

Can stress play a role in the development of aphthous ulcers?

Yes, stress is a common trigger for aphthous ulcers, so managing stress through relaxation techniques or counseling may help reduce the frequency of outbreaks.

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Information provided by Maryam Abdullahi-Mahdi. Reviewed by Mr. Matthew Liew