Medically reviewed by Brendan Camp, MD A rash, or dermatitis (eczema), on the neck is skin inflammation and irritation. It ...

The rash showed up on his neck because he spent a lot of time lying ... A small skin sample called a biopsy, revealed a mild inflammation, and a fungal test returned negative.

It may also affect the neck or face. The appearance of ... that looks similar to an inverse pityriasis rosea rash include psoriasis, the fungal infections tinea corporis and tinea versicolor ...

However, a fungal test returned negative ... said the teen—who wasn't identified—had two rashes on the back and side of his neck. Writing in the New England Journal of Medicine, they ...