back side of a man`s head suffering from scalp acne

acne allergy autoimmune back bad bald care closeup dandruff dermatitis dermatologist dermatology discomfort disease disorder doctor dots dry eczema epidermis hair hairloss head health healthcare hormone human hygiene iritating irritation issue itch itchy male man mans medical medication medicine oily people person physician problem psoriasis rash red redness scalp short sickness side skin skincare small stress suffering ugly unwell view white