Dandruff is produced as a result of the continuous flaking of the general skin dirt, i.e. the epidermal stratum corneum, and also as a result of metabolism; too much dandruff and blocked pores cause a weakened state of hair, which is easy for bacteria to proliferate and stimulate the skin to produce itchy head problems. Dandruff is divided into physiological dandruff and pathological dandruff. Physiological dandruff: Generally speaking, dry dandruff is common in adults, which is bran-like, grayish white small phosphorous scattered between hairs. Another type of dandruff is oily dandruff, with a greasy and sticky feeling on the scalp and hair, with scabs of varying thicknesses attached to it. Pathological dandruff: It refers to the inflammation of the scalp caused by bacterial infection, fungal infection, or other physical or chemical injuries. The treatment methods for children with dandruff are as follows: 1. Wash your hair with lukewarm water: overheated water will stimulate scalp oil secretion, making more head oil, and frozen water will cause pores to contract, so the dirt inside the hair cannot be washed away. 2, quit eating too sweet food: because the hair is alkaline, dessert is acidic, will affect the acid-base balance in the body, accelerate the scalp. 3, can consume some food containing more zinc: such as: brown rice, oysters, sheep, cattle, pigs, red rice, chicken, spaghetti, milk, eggs. 4.If necessary, you can add internal medication for supplementary treatment, such as vitamin B6, thyroxine tablets.