Scarlet fever is an illness that can happen in kids, usually 5–15 years old, who also have strep throat or strep skin infections. The strep bacteria make a toxin (poison) that causes a bright red, ...

The rash usually starts on the face and makes the cheeks bright red. Then, red (usually lighter) blotches appear on the chest, back, arms, and legs. The rash can be itchy. After a few days, it takes ...