The appearance of large pieces of dandruff that can be buckled up, consider the following diseases: 1, hair erythema: the appearance of light erythema based on adhesive scales, similar to the rash performance of seborrheic dermatitis, and in the extensor side of the limb joints to see the consistency of the hair follicle papules, the center of black hair through, in the clinical etiology is mainly due to genetics, vitamin deficiency, keratinization abnormalities, endocrine abnormalities and autoimmune and other factors, treatment can be oral Avia capsule combined with compound glycyrrhetinic acid capsule, supplemental vitamin A, vitamin E, external halomethasone ointment, fluticasone propionate ointment coated.