On the one hand, scalp metabolism is accelerated and scalp sebum secretion is increased. On the other hand, there may be secondary malassezia infection, which secretes substances that stimulate scalp proliferation and accelerates scalp desquamation. In this case, ketoconazole lotion and selenium disulfide lotion have good effects of inhibiting Malassezia and removing dandruff. The older ones are compound sulfur emulsion and compound coal tar emulsion, which are also effective for dandruff, but don't use them too often to avoid damaging your hair. In addition, do not use too alkaline shampoo, which may cause irritation and damage to the skin barrier of the scalp and accelerate the generation of dandruff.
People with dandruff often wash their hair, try to keep their hair and scalp clean and adjust their diet. Usually, we should eat more alkaline foods, eat more foods that clear away heat and detoxify, and eat less irritating and fried foods.