Q:

How long will it take a canker sore to heal?

A:

Quick Answer

Depending on their severity, canker sores heal in one to six weeks. Minor ones may heal in one to three weeks, while major sores may take up to six weeks. With a canker sore, pain is often only felt for a week to 10 days.

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Full Answer

Usually, the sores heal by themselves without needing any medical intervention. Home remedies include eating soft foods, drinking lots of fluids, rinsing one's mouth with salt water and applying an over-the-counter cream containing a cortical steroid. If the sores remain symptomatic or do not seem to be healing after two weeks of using home remedies, a doctor may need to prescribe treatment.

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Related Questions

  • Q:

    What are some common causes of canker sores?

    A:

    The exact cause of canker sores is unknown, but doctors believe they are triggered by minor oral injuries, allergic reactions to bacteria, food sensitivities and emotional stress, Mayo Clinic states. Dietary deficiencies, such as low iron, and products containing sodium lauryl sulfate, such as toothpaste, are also suspected triggers.

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  • Q:

    What are the top sites to learn about severe canker sore treatment?

    A:

    Individuals may find medical sites such as the American Academy of Oral Medicine or Mayo Clinic to be good sources of information for the treatment of severe canker sores. Their articles on canker sores discuss treatment options such as over-the-counter products, prescription medicines and cauterization.

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  • Q:

    What are some natural treatments for a mouth canker sore?

    A:

    German chamomile, lady's mantle, vitamin B-12 and deglycyrrhizinated licorice are natural herbs and supplements that can be used to treat oral canker sores, states About.com. It is suggested to see a doctor if the sores are reoccurring.

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  • Q:

    What is a cold sore?

    A:

    A cold sore is a very small blister that is filled with fluid and is caused by a viral infection, according to Mayo Clinic. It is also known as a fever blister. Cold sores are known to appear in groups, and it is common for a crust to form over the blisters after they are broken.

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