Spleen and stomach deficiency and cold usually do not cause dry mouth and tongue, dry mouth and tongue may be caused by stomach yin deficiency and internal heat or stomach heat, can choose to nourish yin and diarrhea medication, such as Maimendong Tang or Jade Lady Decoction. The medication should be chosen after the doctor has clearly identified the symptoms. Patients with deficiency cold in spleen and stomach often show that their stomach and abdomen feel cold and painful, and their stomach and abdomen like the feeling of warmth and pressure. It is mostly caused by unhealthy diet, overeating cold and fatigue. Dry mouth is mostly caused by solid fire or deficiency fire of the stomach. The treatment of solid evidence is to clear the stomach and diarrhea fire (clear the fire in the stomach), can choose Jade Maiden Decoction, in the formula, gypsum, Zhimu to clear the heat of the lungs and stomach, Huanglian, gardenia to clear the heat and diarrhea fire. For deficiency evidence, the treatment is to nourish yin and clear the stomach (nourish the yin fluid of the stomach), choose Maimendong Soup, in which Maimendong clears the deficiency heat of the lungs and stomach, and jujube, round-grained rice and ginseng benefit the stomach and promote the production of fluids. If dry mouth occurs and affects your normal life, you should consult a doctor to identify the symptoms and treat the symptoms.