Frequent itching of the scalp is considered to have the following conditions: i. Hair red furunculosis, which can appear as yellowish-red adhesive scales on the scalp area, and follicular consistency papules on other parts of the circumference, especially on the extensor side of the extremities, with horny plugs and black hairs crossing the top of the plugs, accompanied by itchy conscious symptoms. In clinical treatment, you can take oral Avi A capsules with the application of thalidomide tablets, while you can apply doxepin ointment mixed with harcinexide ointment and dexamethasone acetate ointment for treatment. Second, common psoriasis, in addition to itching can also see erythematous scaly rash, clinical treatment can be taken orally compound amineptine tablets, topical trimethoprim ointment application treatment.