Read below about mouth sore with a layer covering it, including causes and common questions. Or get a personalized analysis of your mouth sore with a layer covering it from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

This symptom can also be referred to as:
Mouth sore with white coating

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A.I. Health Assistant Causes for Mouth Sore With a Layer Covering It

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced mouth sore with a layer covering it. This list does not constitute medical advice.

  1. 1.Cold Sore

    Cold sores (also called oral herpes or fever blisters), are viral infections of the mouth caused by the herpes virus type 1. You were probably infected very early in life as a child when an adult kissed you. The virus stays asleep (dormant) and causes infections every now and then after exposure to lots of sun or emotional/physical stress. It is contagious when an outbreak is happening, but treatment is limited unless you are immunocompromised.

    1-2 weeks. Natural healing process starts within 24 hours of the initial sore starting.

    Rarity:
    Uncommon
    Top Symptoms:
    mouth lesions, itchy mouth, pain on the outside of the lips, lip numbness, burning pain on the outside of the lips
    Symptoms that always occur with cold sore:
    mouth lesions
    Urgency:
    Self-treatment

    Mouth Sore With a Layer Covering It Checker

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  2. 2.Canker Sore

    Canker sores are small, grayish-white sores in the mouth, often on the inside of the cheeks, lips, and on the tongue. No one really knows why canker sores happen, but it seems to be inherited and susceptible to vitamin deficiencies and allergies.

    1 week

    Rarity:
    Common
    Top Symptoms:
    painful mouth sore, numerous mouth sores, mouth sore surrounded by a red area, single mouth sore, oral ulcer
    Symptoms that always occur with canker sore:
    painful mouth sore
    Urgency:
    Self-treatment
  3. 3.Oral Herpes

    Herpetic stomatitis is a viral infection of the mouth that causes fever and red and inflamed gums. This typically happens early in childhood.

    1-2 weeks but recurrent

    Rarity:
    Rare
    Top Symptoms:
    fever, gum pain, painful mouth sore, gum swelling, gum redness
    Symptoms that always occur with oral herpes:
    gum pain
    Urgency:
    Self-treatment

Questions Your Doctor May Ask About Mouth Sore With a Layer Covering It

  • Q.Do you have a rash?
  • Q.Any fever today or during the last week?
  • Q.Do you have a sore throat?
  • Q.Have you lost your appetite recently?

If you've answered yes to one or more of these questions, try our mouth sore with a layer covering it symptom checker to find out more.

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Mouth Sore With a Layer Covering It Symptom Checker Statistics

  • People who have experienced mouth sore with a layer covering it have also experienced:

    • 6% Fatigue
    • 5% Neck Bump
    • 5% White, Lacy Plaque on Tongue
  • People who have experienced mouth sore with a layer covering it had symptoms persist for:

    • 47% Less Than a Week
    • 26% Less Than a Day
    • 11% Over a Month
  • People who have experienced mouth sore with a layer covering it were most often matched with:

    • 33% Cold Sore
    • 33% Canker Sore
    • 33% Oral Herpes
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

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