What is the reason for the loss of tongue coating?

Tongue coating shedding, from traditional Chinese medicine, may be caused by some diseases, generally we think that normal tongue, tongue coating should be relatively thin, white, tongue should be red, if there is tongue coating, and tongue coating peeling. We think it may be caused by food accumulation, so we must control diet, and eat less beef, eat less mutton, this hot food, to light diet, do not eat spicy, do not eat hot, to appropriate exercise. It may also be atrophic glossitis caused by tongue peeling, this situation as long as there are no symptoms, can not be treated, maintain oral hygiene can, if there is pain, you can use chlorhexidine mouthwash.