Stress is thought to boost the activity of leukocytes, immune cells linked to inflammation throughout the body, including in ...

A canker sore—a painful white ulcer inside the mouth—might be brought on by stress. Or the wrong toothpaste. Or certain foods: tomatoes, peanuts, cinnamon. Or an iron deficiency. Or an allergy. Or a ...

This is a rare autoimmune skin disorder that occurs when your immune system starts attacking healthy epidermis cells (the top layer of your skin). Pemphigus can manifest itself as blisters and sores ...

Cold sores occur on the outside of the mouth and are caused by the herpes simplex virus. Canker sores are blisters inside the mouth that can occur due to injury, nutritional deficiencies, and ...

Canker sores are painful ulcers that form inside your mouth. The sores can affect daily habits like eating and drinking. Experts recommend key practices like regular teeth brushing and flossing to ...

Blisters are small, painful sacs of fluid that appear on your skin. Different factors can bring on blisters. You’ve probably developed a blister from a shoe rubbing against your skin — that’s one ...

Canker sores are inflamed spots in your mouth that cause pain and typically heal within a couple of weeks. Oral cancer may cause raised spots or patches in your mouth that worsen over time. Share on ...

Cold sores are a symptom of oral herpes, which is caused by the herpes simplex virus. Angular cheilitis is less common and has several different causes. Each condition is treated differently. Mouth ...

Lip ulcers are cold sores, and canker sores are a type of mouth ulcer. Both can cause pain and discomfort but typically clear up without medical treatment. Lip ulcers are another name for cold sores.

Health officials in the mid-Atlantic region have recently reported a rise in hand, foot and mouth disease, or HFMD. What is hand, foot and mouth disease, and what causes it? How is it spread? What are ...