Are rashes contagious? 

Whether your rash is contagious (can be spread from person to person) depends on the cause. 

Some rashes caused by infection, such as shingles, impetigo, ringworm, or chickenpox, are contagious. 

Allergic rashes and conditions like eczema and psoriasis are not contagious. 

Your dermatologist can advise you on reducing the risk of spreading your rash to others if it is contagious.