It's characterized by red bumps on the chest and back, which may spread to the arms and legs over the following ... It typically appears as a flat, itchy, purple rash. The cause of lichen planus ...

Drug rashes can be an unwanted side effect of many medications. Learn which medications can cause these skin reactions.

The tiny mites — also called berry bugs — may leave behind small, itchy red bumps ... doctors are “looking for little red bumps, typically on the lower legs and ankles,” Dr. Melissa ...