Dry mouth and bitter mouth may be due to a variety of reasons, need to take different drugs according to different conditions. Such as liver and gallbladder damp-heat (damp-heat evil Qi deposited in the liver and gallbladder) can take gentian diarrhea liver pill to regulate, stomach fire can take Huanglian clear stomach pill to regulate, it is recommended that under the guidance of a professional physician to identify the evidence of the treatment. Gentian Liver Pill has the effect of clearing damp-heat in the liver and gallbladder (the accumulation of damp-heat in the liver and gallbladder), and is often used to treat dryness and bitterness in the mouth caused by damp-heat in the liver and gallbladder, as well as dizziness, tinnitus, deafness, pain in the ear, and pain in the thoracic region (the chest and ribs region collectively). However, the bitter and cold nature of Gentian grass and Scutellaria baicalensis in this formula can easily hurt the spleen and stomach, and should be used with caution for people with loose stools. Huanglian Qinggum Pill has the effect of clearing and removing stomach fire, and is often used in treating dry mouth and bitter mouth caused by stomach fire, as well as sores on the mouth and tongue, and red, swollen and painful gums. But the drug formula in the Huanglian, gardenia, forsythia and other bitter taste, easy to hurt the spleen and stomach, so the spleen deficiency of loose stools should be used with caution, and pregnant women are prohibited. If you have symptoms, you should take the medicine under the guidance of a professional physician, do not take the medicine blindly, so as not to delay the condition or produce adverse reactions.