Excessive dandruff may be related to ringworm of the scalp, seborrheic dermatitis, psoriasis, etc. Follow the doctor’s instructions to use antifungal drugs, hormones, immunosuppressants, biological agents, etc. 1. For those caused by ringworm of the scalp, 1% terbinafine cream can be used externally or oral itraconazole and other antifungal drugs. 2. For seborrheic dermatitis, topical hydrocortisone ointment or oral glucocorticoids such as prednisone, oral itraconazole, vitamin B6, topical tacrolimus and other immunosuppressants can be used. 3. For those caused by psoriasis, topical glucocorticosteroids such as hydrocortisone ointment or immunosuppressants such as tacrolimus and biological agents such as adalimumab can be used. It is recommended that those who have the need to remove dandruff should consult a doctor in time to clarify the cause and carry out medication under the guidance of the doctor, and not blindly self-medication.