Clinically speaking, bitter mouth can be treated with drugs such as gentian diarrhea liver pill, Xiao Chaihu granules, and clearing the liver and gallbladder capsule. 1. Longdian Diarrhea Liver Pill: This medicine plays the role of clearing the liver and gallbladder and promoting dampness-heat in the clinic, targeting the bitter mouth caused by dampness-heat of the liver and gallbladder (dampness-heat evils are deposited in the liver and gallbladder), and accompanied by heavy limbs and heavy limbs (limbs are weak and heavy), tinnitus and deafness, etc. The medicine includes Zedoaria, Mudong, Psyllium, Angelica, and Di Huang. Medicines include Zezhi, Mutong, Psyllium, Angelica Sinensis, Di Huang, and so on. The drug should be used with caution in pregnant women, the elderly and the infirm, and those with loose stools. 2. Xiao Chaihu Granules: This medicine can relieve the surface and dissipate heat, dredge the liver and stomach, and is mainly used for symptoms such as heat and cold (body is hot and cold), bitter fullness in the chest (the front and sides of the chest feel distended and uncomfortable), heartburn and vomiting, and bitter taste and dryness of the mouth and throat. Codonopsis, ginger, licorice, jujube, scutellaria, and ginger and half-sia are the mainstays of the medicine. The contraindications of this drug are not clear. 3. Liver and gallbladder cleansing capsule: this drug can play a role in clearing the liver and gallbladder damp-heat (damp-heat evils accumulated in the liver and gallbladder), targeting mainly damp-heat condensation (dampness and heat evils in the body each other agglomeration) liver and gallbladder caused by symptoms such as bitter taste in the mouth. The drug is mainly composed of honeysuckle, Houpu, Fangji, gardenia and so on. Contraindications of the drug are not clear. It is recommended to take the above medicines under the guidance of a doctor.