Folliculitis decalvanshttps://en.wikipedia.org/wiki/Folliculitis_decalvans
Folliculitis decalvans is an inflammation of the hair follicle that causes induration of the affected scalp, accompanied by pustules, erosions, crusts, ulcers, and scaling. It leaves scarring, sores, and, due to the inflammation, hair loss. The exact cause is unknown, but the bacterium Staphylococcus aureus plays a central role.

Treatment ― OTC Drugs
All acne medications may be tried, but in most cases the symptoms are severe enough that a doctor should be consulted for oral antibiotics.
#Benzoyl peroxide [OXY-10]
#Bacitracin

Treatment
#Minocycline
#Isotretinoin
☆ In the 2022 Stiftung Warentest results from Germany, consumer satisfaction with ModelDerm was only slightly lower than with paid telemedicine consultations.
  • Foliculites decalvans ― It shows repeated inflammation and scars at the border of the scalp and posterior neck
    References Acne Keloidalis Nuchae 29083612 
    NIH
    Acne keloidalis nuchae is a disease characterized by persistent folliculitis at the nape of the neck that forms keloid like scars and ultimately cicatricial alopecia. The disorder is most common in young African American males.