Dealing with red, itchy eyelids? The culprit could be a common mite. This article is sponsored by XDEMVY. Dr. Watson is a ...

A rash on one or both eyelids is usually a sign of dermatitis. Many common environmental irritants, allergens, and daily activities can trigger the red, swollen, itchy skin of a dermatitis rash.

Medically reviewed by Christine L. Larsen, MD Eye crust forms when mucus, oils, and debris accumulate, often during sleep.