Excessive dandruff may be caused by poor living habits, tinea capitis, seborrheic dermatitis, psoriasis, etc. Different treatments can be chosen according to the causes, such as general treatment and medication. 1. Bad living habits: bad living habits may cause excessive dandruff, it is recommended to reduce staying up late, eat light diet, quit smoking and drinking, and improve living habits. 2. Tinea capitis: Tinea capitis can also lead to more dandruff, tinea capitis is usually caused by fungal infection, can be oral combined with topical antifungal drugs, such as terbinafine, itraconazole, etc., in the secondary bacterial infection, can be combined with oral antibacterial drugs, such as erythromycin, roxithromycin and so on. 3. Seborrheic dermatitis: seborrheic dermatitis can also lead to excessive dandruff, in addition to maintaining local cleanliness, can also be used externally to achieve the role of fat, anti-inflammatory, anti-dandruff and anti-itching drugs, such as ketoconazole, selenium disulfide, hydrocortisone cream, tacrolimus cream, and so on. 4. Psoriasis: psoriasis can also lead to excessive dandruff, psoriasis has no specific treatment, the current symptomatic treatment to alleviate the symptoms. Topical glucocorticosteroids are commonly used, such as clobetasol propionate and carbotriol. Patients with excessive dandruff are advised to go to the hospital in a timely manner, under the guidance of the doctor to clarify the diagnosis, active treatment, do not take medication without authorization to avoid adverse reactions.