A rash is an area of irritated or swollen skin. Rashes can appear as blotches, welts or blisters; they can be red, itchy, scaly, or dry; and they can occur in one area of skin or all over the body. In addition, some rashes may come and go, while others never seem to go away.
Contact dermatitis is a common type of rash. It causes redness, itching, and sometimes small bumps. You get the rash where you have touched an irritant, such as a chemical, or something you are allergic to, like poison ivy.
Although most rashes are not life-threatening, some rashes can signal something more serious. If you have a rash and notice any of the following symptoms, we recommend seeking medical care right away.
Other signs and symptoms that may be associated with rashes include the following:
- Blister formation
- Skin ulceration
- Skin discoloration
- Bumps on skin