Systemic therapy may be used for widespread lesions. This can include antimalarial drugs such as hydroxychloroquine and chloroquine. Skin cancer may cause scabs on the scalp that don't go away.

Tinea capitis causes hair loss ... Beginning with an erythematous scaling patch on the scalp, BDTC progresses to single or multiple lesions. Hair is broken off at the surface, and detritus ...

It causes round skin lesions which can be more prone to skin cancer. These lesions can affect the scalp as well as the rest of the body. Lupus-related hair loss can be caused by: Certain lupus ...

Seborrhea is a common condition of the scalp which involves the entire ... and even groin. It never causes two discrete lesions on one side of the neck. Prurigo nodularis is the correct answer.