Malassezia is a common human parasite, basically all people may be infected, when the body has a strong oil secretion, excessive sweating, etc. Malassezia can be a large number of reproduction, induced Malassezia folliculitis, macular furuncle and other skin diseases. 1. Malassezia is a common human parasite, usually planted in the human body’s chest, back, scalp and other oil-rich parts, basically all people may be infected. Generally speaking, when the organism has oil secretion, excessive sweating, immune dysfunction, long-term use of glucocorticoid drugs, large amounts of greasy or stimulating food intake, high temperature and humidity of the living environment, etc., it will make it reproduce in large quantities, inducing Malassezia folliculitis, florid chafing, seborrheic dermatitis and other skin diseases. 2. Patients should pay attention to the selection of loose and breathable clothing, diligent bathing and changing clothes, regular work and rest, light diet, strengthen diet and nutrition, and participate in physical exercise to enhance the body’s immunity in order to avoid recurrence of the situation. It is recommended that patients go to the hospital in a timely manner, to clarify the cause, follow the doctor’s instructions to standardize the treatment, do not blindly use their own medication.