Learn All The Characteristics of Blisters
Blisters are liquid-filled pockets that form between the upper dermis layers. The purpose of a blister is to provide a cushion to protect the skin layers below. Blisters can develop in response to several common causes. Constant friction between the skin and a rough surface is a frequent cause of blisters. Exposure of the skin to a burning or freezing surface or a chemical agent can also lead to the formation of blisters. Most blisters heal naturally over time and do not require medical attention. But some blisters can be symptoms of certain diseases and should be evaluated medically.