It has been recorded in TCM literature for a long time, for example, in The Complete Book of Surgery, it is said that "... dispersing qi and blood to relieve its toxicity is easy to collapse and stagnate". Head fumigation can not only dredge meridians and regulate qi and blood through the function of traditional Chinese medicine itself, but also adjust the whole body function through specific local stimulation, so as to achieve the purpose of treating diseases and strengthening the body.

The head is the confluence of the sun, and the brain is the mansion of the Yuan God. Traditional Chinese medicine scholars believe that "the essence of the five internal organs lies in the head", and the fumigation therapy of hair care is to extract the essence of Chinese herbal medicine and steam by decocting, regulate meridians, regulate qi and blood, and regulate spirit, so as to achieve the purpose of hair care.