Seborrheic dermatitis is the name of a Western medicine disease, and its Chinese medicine name is “leucoderma”, and the treatment of leucoderma can be used to eliminate the wind, gentian diarrhea of the liver soup, etc. The main cause of leucoderma is dampness and heat in the body. Leukoplakia is mainly caused by internal dampness and heat in the body and external wind, and it is aggravated by uncontrolled diet, excessive spicy food and alcoholism. This disease is mostly seen in young adults, and there are dry and oily. 1. Wind dispersal has the effect of dispersing wind and removing dampness (dispersing wind evil and eliminating dampness), clearing heat and nourishing blood, treating dry white dandruff wind with wind-dryness and blood-heat, the symptoms of which are greasy scales stacked on the scalp, light-red patches, such as snowflakes falling down like scratching, and thinning of the hair, accompanied by dry mouth and thirst, and dry stools. It is not suitable for people with deficiency and cold (symptomatic rash itching, accompanied by nausea and headache, etc.). 2. Longdian Diarrhea Liver Tang has the efficacy of clearing heat and inducing dampness, strengthening the spleen and stomach, and can treat damp-heat oily leucoderma, which is characterized by greasy and shiny skin, oily and sticky feeling when touched, yellowish-white powdery juice squeezed out from enlarged pores in the nose, oily and shedding scalp hair, or dandruff, itching, etc. This formula is bitter and cold in nature. The medicine of this formula is bitter and cold, and should not be taken by people with spleen deficiency and diarrhea. The above two prescriptions should be used under the guidance of a physician, during the medication, please avoid eating spicy, fish, alcohol, tobacco, strong tea, etc., to avoid affecting the therapeutic effect. If the symptoms are more serious and accompanied by discomfort, please consult a doctor in time, do not blindly use drugs, so as to avoid the delay of the wrong medicine.