Canker sores are gray-white with a red outer ring, and inflammation surrounds them. The herpes simplex virus (HSV-1) causes cold sores. These sores are quite contagious, and any contact with the blister can cause the virus to spread to another person or another part of the body. When should youRead More →

A stress or minor injury to the inside of the mouth is thought to be the cause of simple canker sores. Certain foods —including citrus or acidic fruits and vegetables (such as lemons, oranges, pineapples, apples, figs, tomatoes, strawberries) — can trigger a canker sore or make the problem worse.Read More →

Most oral blood blisters develop following trauma to the mouth, such as biting your cheek, burning your mouth with hot food, or puncturing soft tissue with sharp food, like a chip. In the case of trauma, a blood blister usually develops quickly after the damage takes place. When should youRead More →