What is a rash?

A rash is a skin disorder which causes a change in the normal appearance of the skin. It may appears suddenly or gradually and most rashes disappear after days or weeks. Some rashes may recur (come back repeatedly) or persist (become chronic). Any part of the body may be affected by a rash. However, if the rash only affects the skin of certain parts of the body, this may help with the diagnosis. While most rashes are mild and recover quickly, some are serious and need urgent treatment. There are many types (appearances) of rashes.

A rash is a skin disorder which causes a change in the normal appearance of the skin.

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