Blepharitis is an inflammation or infection of the eyelid. It is often caused by bacteria (usually staphylococcus) or related to a long-term (chronic) skin condition. These may include dandruff, skin allergies, or eczema.

This condition causes the edge of the eyelid to become red, itchy, and irritated. Sores may develop on the eyelid, or the eyeball itself may get red. The eye may also burn and itch. Matter may collect in the eye and form a crust on the eyelid edge and eyelashes overnight.

Usually, home treatment is all that is needed to treat blepharitis. This includes keeping the eyelids free of crust by cleaning the area with a mild soap that does not irritate the eyes, such as baby shampoo; placing warm face cloths over the eye; and applying antibiotic eye ointments. Severe cases of blepharitis may need to be treated with oral antibiotics (pills).