They most commonly affect the scalp and rarely the beard ... capitis abscedens et suffodiens (of Hoffman), or dissecting folliculitis, is an even more severe inflammatory condition.

Hair follicles are the areas of your skin that surround the roots of your hair strands. Irritation of this area can cause tiny, itchy, red bumps ...

In this article (Part II of II), the focus is on scarring alopecias (dissecting folliculitis, folliculitis decalvans, lichen planopilaris, lupus erythematosus) in regard to pathogenesis ...