If you have an itchy bump on the back of your head, first of all, consider whether it is due to bursitis caused by repeated friction of the occipital ramus or local tissue spasm, you can give appropriate local heat compresses and also apply diclofenac diethylamide latex locally. If muscle spasm is apparent, oral muscle relaxants such as ethylphenidate hydrochloride tablets can be administered. Secondly, if the local mass is soft in texture, accompanied by obvious redness, swelling, heat and pain, it is necessary to consider whether the folliculitis is caused by bacterial infection, or sebaceous cyst with infection, and anti-infective treatment needs to be given in a targeted manner. If the epidermis does not break down, you can apply ichthyol ointment or take oral cephalosporin antibiotics. If there is a significant local abscess and it breaks down, surgical incision and drainage is required. In addition, itching may also be caused by local skin allergies, and oral anti-allergy medications, such as cetirizine capsules, can be taken.