For the treatment of dry mouth and bitterness, it can be subdivided according to the cause: 1. For dry mouth and bitterness, if the dry mouth and bitterness are caused by bile reflux, this part of the patient needs drugs that promote power to help bile excretion, in addition, bile adsorption drugs can be used, and there are common drugs that promote power in the upper gastrointestinal tract, such as morpholine, which can help the bile in the stomach to excrete. There are also whole digestive tract prokinetic drugs, such as mosapride or Hovenia Kuanzhong, which can help bile excretion in the stomach and then improve the symptoms of dry mouth and bitterness. In addition, you can use the adsorption of bile drugs, adsorption of bile drugs common magnesium aluminum carbonate treatment, because magnesium ions can be combined with bile acids, magnesium aluminum carbonate treatment for patients with dry mouth and bitterness is very beneficial; 2, if the patient is because of bile excretion disorders, such as common primary biliary cholangitis or primary sclerosing cholangitis caused by such some patients with dry mouth and bitterness because of bile excretion disorders in the biliary tract The most useful drug in biliary treatment is ursodeoxycholic acid, and for this group of patients, ursodeoxycholic acid should be taken for life. Therefore, for the treatment of dry mouth and bitterness, we should first look at the cause of the disease and then give the patient the appropriate medication according to the cause.