Rashes on sweaty scalp may be caused by folliculitis, ringworm of the head and so on. According to the different diseases, you can choose the appropriate drugs for treatment. 1. Folliculitis: a purulent inflammation confined to the mouth of the hair follicle. It occurs in the head, face, neck, buttocks and vulva. The lesions start as red follicular papules, with pustules appearing in the center within a few days, surrounded by a red halo. Attention should be paid to skin hygiene, prevention of trauma and enhancement of immunity. Topical antibiotics such as mupirocin ointment can be used. 2. Ringworm of the head: refers to the involvement of hair and scalp of the dermatophyte infection, can be used externally 1% terbinafine cream and other topical antifungal drugs applied to the affected area, if necessary, oral antifungal drugs such as itraconazole. In addition, you can use 2% ketoconazole lotion to wash your hair, the patient used towels, combs, hats, pillowcase, and other household items, and hairdressing tools, etc., all need to be sterilized. Sweating scalp rash may also have other reasons, do not self-medication, need to seek medical treatment as soon as possible, under the guidance of a doctor.