These spots often appear as raised, red, or itchy welts. Why it happens: When your immune system reacts to a substance it ...

Treatment typically involves using lotions to soothe the itching, irritation ... from bleeding under the skin. It shows as red or purple spots that measure 2 millimeters or less across, but ...

This bacterium can cause an itchy, red rash known as "hot tub rash" and may also lead to swimmer's ear. The rash typically appears within hours or days, mostly around the stomach area, and usually ...