Scalp itchy hair loss serious may be suffering from seborrheic dermatitis, androgenic alopecia, scalp psoriasis and other diseases, need to take targeted treatment according to the cause. 1. Seborrheic dermatitis: when the lesions are mild, you can choose to apply local ketoconazole, miconazole, econazole cream, and when the symptoms are severe, you can take glucocorticosteroids, such as prednisone, for treatment. 2. Androgenetic baldness: male patients can use 5% minoxidil tincture application and oral finasteride; female patients can use 2% minoxidil tincture application and oral spironolactone for treatment. 3. Scalp psoriasis: oral methotrexate, Avicenna, Cyclosporine and other drugs, or local application of Capotriol application for treatment. Scalp itching hair loss serious patients should go to the hospital in time, clear cause, follow the doctor’s instructions for treatment, not blindly self-medication.