Dandruff more itchy difficult may be caused by the head skin is not clean, should be appropriate diligently wash your hair, etc.; can also be caused by seborrheic dermatitis, can be relieved through the use of selenium disulfide and other treatments; ringworm can also cause dandruff and itchy, can be treated with antifungal drugs such as terbinafine, ketoconazole, etc.. 1. Head skin is not clean: dandruff itchy scalp can be caused by long-term unwashed hair, usually should develop good hygiene habits, wash your hair diligently, etc., generally can be relieved. 2. seborrheic dermatitis: dandruff and itchy head is a common cause of seborrheic dermatitis of the scalp, may be associated with seborrhea on the basis of secondary skin inflammation, you can use selenium disulfide and other treatments to relieve. 3. Tinea capitis: Tinea capitis is a fungal infection that can cause localized itching of the scalp and increased dandruff, which can be treated with topical or combined oral antifungal drugs such as terbinafine or ketoconazole. If dandruff, itchy scalp, it is recommended that patients go to the hospital in a timely manner, after a clear diagnosis of symptomatic treatment, the use of the above drugs need to follow the doctor’s instructions, do not blindly use their own medication.