Cold sores are small blisters around the mouth, caused by the herpes simplex virus. They are sometimes called fever blisters. The most common strain of the virus causing cold sores is herpes simplex virus 1. It can be spread by kissing or sharing eating utensils or even sharing towels.

Cellulitis is a serious deep infection of the skin caused by bacteria. It often occurs in an area that has already had an injury or skin break.

Yeast is a fungus normally found inside your body and on your skin. When too much yeast grows, it can cause an infection. Antifungal creams or medicines taken by mouth are used to treat it.

Blisters are bubbles on the skin that are filled with bloody or clear fluid. Blisters are common injuries and often heal on their own.

A peptic ulcer is a sore on the lining of your stomach or the first part of your small intestine (duodenum).

Baldness, or hair loss, can be caused by many things including aging, hormones or illness. It's more common in men and can be treated with hair transplants or other procedures.

Detailed information on digestive disorders, including anatomy of the digestive system, digestive disorders diagnosis, digestive disorders medications, colorectal cancer, esophageal cancer, and stomach cancer

Detailed information on the most common bacterial skin infections, including cellulitis, folliculitis, boils, carbuncles, and staphylococcal scalded skin syndrome

Detailed information on different methods for acne scar removal. These include dermabrasion, chemical peels, collagen injections, laser resurfacing, punch grafts, and autologous fat transfer.

Lactose intolerance is when your body can’t break down or digest lactose. Lactose is a sugar found in milk and milk products. Read on to learn details about lactose intolerance, including causes, symptoms, diagnosis, and treatments.