Haikou Fukang Hospital, No.97 Haifu Road, Meilan District, Haikou City. Haikou Fukang Hospital is a specialized dermatology hospital focusing on Lingnan traditional Chinese medicine. The hospital undertakes important medical tasks such as clinical, scientific research, teaching, prevention and rehabilitation of dermatoses in Haikou city and even in South China. Blood dryness is a term of traditional Chinese medicine, which generally refers to the dryness and astringency of body fluids and blood in human body. That is, the dryness of body fluid and blood is generally called blood dryness. Body fluids and blood are distributed throughout the body. It is distributed in the internal organs and reaches the skin outside. Therefore, the dryness of the five internal organs will be manifested through the state of skin, mucosa, hair and nails. Clinically, dry skin, rough and moist skin, increased scales, large pores, loose skin and increased wrinkles are common: or dry oral mucosa and reduced saliva secretion; Or dry and itchy eyes, which may be accompanied by foreign body sensation and reduced tears; Or dry nasal mucosa, nasal scab, and less cough phlegm. In addition, it is often accompanied by dry hair, easy shedding, dry mouth and thirst, burning lips and polydipsia, short and red urine, dry stool, hoarse voice and sticky phlegm.