There is no such thing as a small prescription for dry mouth. The treatment of dry mouth and bitter mouth, need to recognize the evidence of treatment, there is no such thing as a small prescription, symptomatic treatment can receive good results. Dry mouth and bitter mouth may be the result of liver fire, can be relieved by oral gentian diarrhea liver pill, diarrhea pill and other traditional Chinese medicine. 1. Gentian Liver Pill is composed of gentian, chaihu, scutellaria, gardenia, zejiao and so on. It has the effect of clearing the liver and gallbladder and inducing dampness-heat. It is used for damp-heat of liver and gallbladder (damp-heat evils accumulated in liver and gallbladder), dizziness and redness of eyes (dizziness and redness of eyes), tinnitus and deafness, ear swelling and pain, dystocia (pain in the area of coxa and ribs), bitterness in the mouth, and redness and astringent pain in urine (feverishness, unobstructedness and pain when urinating). Pregnant women should take it with caution. 2. Laxative Green Pill, composed of gentian, gardenia, rhubarb, windproof, qiangwu, chuanxiong and so on. It has the efficacy of purging the liver and catharticizing fire (clearing liver fire). It is used for tinnitus and deafness caused by inflammation of liver fire, bitter mouth and dizziness, pain in both hypochondrium, redness and astringency of urine. It is not recommended for pregnant women, and should not be used by those who are old and weak, have loose stools, or have deficiency and coldness in the spleen and kidney. The above drugs for the symptoms of dry mouth and bitter mouth have a certain therapeutic effect, but the clinical use of drugs need to be cautious, do not self-medication, please go to the regular hospital in a timely manner to diagnosis, so as not to delay the condition.