What are quarter size red spots all over body?

Needs a Dr. to check. Rashes and spots are difficult to describe in words. Generalized spots, reddish & quarter-sized, may be part of an infection (some viruses cause this) or an allergic reaction to foods, medicines, etc... "generalized" means the rash is all over the body. Sometimes, spots have unknown causes. A primary care doctor or dermatologist needs to evaluate the rash to find a diagnosis and treatment.