Scalp long bag is considered to be caused by seborrheic dermatitis, folliculitis, ringworm of the head and other diseases, different diseases treatment methods are different, can be through the general treatment, medication and so on, to carry out treatment. 1. Seborrheic dermatitis: mostly occurs in the sebaceous gland distribution more, sebum secretion of the parts, such as the scalp, chest, face and other parts of the patient scalp can appear erythema, pimples, or dandruff, and part of the patient’s scalp will also have a crust. You should get enough sleep and limit the intake of high-sugar and high-fat foods. You can also use ketoconazole lotion and selenium disulfide lotion as prescribed by the doctor to relieve the symptoms. 2. Folliculitis: occurs in the head, face, scalp, thighs, vulva and other parts of the skin lesions are mostly in the follicle as the center of the red papules, with the development of the disease, can rapidly develop into papular pustules, and can be accompanied by pain and other discomforts. It should be treated with mupirocin ointment and amoxicillin capsule on the basis of keeping the local skin clean, and in serious cases, the pus can be discharged through surgery. 3. Ringworm of the head: hair breakage, bending, scalp may appear red papules, pustules, may be accompanied by scalp itching and other discomforts. You should try to cut the diseased hair, and use drugs such as itraconazole, terbinafine and clotrimazole, to treat it. Bags on the head may also be caused by trauma and other factors, it is recommended to consult a doctor in a timely manner to identify the cause of the disease, follow the doctor’s instructions for treatment, all of the above drugs need to be used under the guidance of a doctor.