Long dandruff head itching can be considered seborrheic dermatitis, ringworm and other diseases. Patients need to choose the appropriate treatment method according to the specific condition and under the guidance of professional doctors. At present, the main treatment methods for this kind of disease include general treatment, medication and so on. 1. Seborrheic dermatitis: If the patient has erythematous rash on the head, with greasy scales or scabs on the surface, often accompanied by different degrees of itching and other symptoms, seborrheic dermatitis can be considered. Such patients need to carry out scientific home care in daily life, and with topical drugs (such as salicylic acid, glucocorticoids such as tretinoin ointment, etc.), or oral drug therapy (such as antihistamines such as loratadine to relieve itching, a larger range of inflammation, the use of glucocorticosteroids, such as prednisone or methylprednisolone, etc.) treatment. In addition, those with fungal infection can take oral antifungal drugs (itraconazole, etc.) or topical antifungal drugs (imidazole drugs, etc.); those with bacterial infection can take topical or oral antibiotic drugs (such as macrolides). 2. Tinea capitis: Tinea capitis will also have symptoms such as increased dandruff and itchy head, in addition, hair breakage, hair loss, folliculitis and other symptoms are also more common. Patients need to go to regular hospitals for clinical evaluation and fungal microscopy in time. The treatment of tinea capitis is based on oral antifungal drugs such as terbinafine, which can be supplemented by local topical drugs such as clotrimazole; at the same time, contaminants and contaminated environments need to be disinfected and decontaminated to prevent re-infection and transmission. It is recommended that the patient consult the doctor in time, conduct relevant examinations, after clarifying the cause of the disease, under the guidance of the doctor, to carry out targeted treatment.