"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Having a circular rash can spark fears that you’ve picked up ringworm. After all, the fungal infection is ...

Erythema migrans and erythema multiforme both cause target- or bull’s-eye-shaped lesions. Erythema migrans is due to Lyme disease. Erythema multiforme is an immune-mediated hypersensitivity skin ...

A 43-year-old woman presented with 6 months of recurrent bilateral eye pain and redness alongside spontaneous urticaria. She noted episodes of quarter-sized itchy lesions appearing on her abdomen, ...

An eye infection can manifest as a host of signs that can cause discomfort and pain. Here are the symptoms that need your ...

Hives are itchy red or white bumps that often stem from an allergic reaction. Some rashes are contagious, but hives are not spread from person to person. Corticosteroids and biologics can treat both ...