Home Symptoms Mouth Sores – 18 Common Causes and Treatment

Mouth Sores – 18 Common Causes and Treatment

Mouth sores

Mouth sores can be caused by a variety of factors. When these sores emerge, they are frequently painful, making daily tasks like brushing one’s teeth or eating hot meals more difficult.

A sore appears in the majority of cases as a result of minor discomfort. Avoiding the irritant can help a person avoid subsequent mouth sores.

In certain circumstances, sores develop as a result of underlying health issues. Anyone who is concerned about chronic or long-lasting sores should consult a doctor, as certain mouth sores are contagious and may require treatment.

Causes of Mouth Sores

Mouth sores can be caused by a variety of factors including irritants, medications, and underlying disease conditions. The causes can therefore be classified into non-disease related and disease-related causes

 Non-disease Related Causes

1. Poorly fitting dentures

2.  Sharp or broken tooth

3. Braces or other devices, such as retainers

4. Burning the mouth on hot food or beverages

5. Tobacco products

6. Certain medications e.g beta-blockers

7. Highly acidic foods

8. Hormonal changes during pregnancy

9. Stress

10. Vitamin and folate deficiencies

Disease-Related Causes

1. Candidiasis

Often known as oral thrush, is a fungal infection that causes white and red patches in the mouth.

2. Herpes Simplex

This is a viral infection that causes mouth sores and can also cause vaginal sores.

3. Lichen Planus

A chronic inflammatory rash in the mouth or on the skin that causes itching and burning.

4. Canker Sores

These are oral sores with a red, flat edge and white or greyish patches surrounding them.

5. Gingivostomatitis

This is a frequent infection that affects both children and adults. The lesions resemble canker sores, however typically appear in conjunction with cold or flu symptoms.

6. Hand, Foot and Mouth Disease

Small, painful red spots occur on the hands, feet, and mouth as a result of hand, foot, and mouth disease. The most common age group affected is children.

7. Leukoplakia

A condition in which white-grey spots occur almost anywhere in the mouth. Mostly seen in HIV or immunodeficient patients.

8. Oral Cancers

Oral cancers can cause oral sores and blisters.

Treatment of Mouth Sores

Mouth sores heal on their own in the majority of cases. Minor injury sores usually disappear after 1–2 weeks.

People can attempt these things while their wounds heal:

1. Avoid hot, spicy, salty, citrus-based, and high-sugar foods

2. Avoid tobacco and alcohol

3. Gargle with saltwater

4. Eat ice, ice pops, sherbet, or other cold foods

5. Take pain medication, such as acetaminophen (Tylenol).

6. Avoid squeezing or picking at the sores or blisters.

7. Apply a thin paste of baking soda and water.

8. Gently dab on a solution that is 1 part hydrogen peroxide and 1 part water.

9. Ask your pharmacist about other over-the-counter medications, pastes, or mouthwashes that may be helpful.


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