The term “medicines to nourish and protect the liver” should refer to medicines that “regulate the liver” in Chinese medicine, which can treat thick and greasy tongue and bitter mouth.
According to Chinese medicine, the occurrence of thick and greasy tongue coating and bitter mouth is mostly due to the internalization of dampness and heat. It may be caused by feeling the evil of dampness-heat or eating poorly, resulting in the internalization of dampness-heat, or dampness-heat in the spleen and stomach, or dampness-heat in the liver and gallbladder, and treatment should be based on the method of clearing away heat and resolving dampness.
According to the basic theory of Chinese medicine, the liver is the main excretory, with the role of unimpeded whole-body qi, which can help the spleen and stomach to transport and transform the water and liquid, so that the accumulation of dampness and heat in the body of the evil out of the body. Therefore, medicines that regulate the liver can, to a certain extent, help treat the evidence of dampness and heat accumulated in the body, i.e., it can treat the evidence of thick and greasy tongue coating and bitter mouth.
Clinical patients with thick and greasy tongue, bitter mouth, etc., should go to the hospital, under the guidance of a professional physician to use medication, do not self-medication, so as not to delay the condition.