Excluding the weather, air humidity, room temperature and other reasons, the elderly night dry mouth and tongue is more likely to consider the external sense of dryness and heat of the evil, the spleen and stomach heat, qi and blood deficiency, yin deficiency and fire (deficiency of yin and essence in the body, the emergence of the deficiency of fire exuberance), etc., and can often be taken at the discretion of the Yuzhu Cream, Huanglian Qingqing Pills, tonify the middle and benefit the qi pills, Zhibai Di Huang Pill, and so on, the specific use of medication, please follow the doctor’s instructions. 1. Fever caused by exogenous dryness and heat, dry mouth and eyes, dry skin, dry cough with little phlegm, etc. The treatment should be clear and pronounced to moisten the dryness, and jade bamboo ointment can be used. Cold patients should not take. Sucrose is the auxiliary material, diabetic patients should not take. 2. Actual heat in the spleen and stomach is commonly seen in thirst for cold water, yellow urine and constipation, insomnia, foul breath, hyperphagia, etc. The treatment should be to clear away heat and reduce fire, such as Huanglian Shangqing Pill. Not to be taken by those who have diarrhea with weak spleen and stomach. 3. Qi and blood deficiency is common thirst, diarrhea, soft stools, insomnia, palpitations (rapid heartbeat, often accompanied by panic), forgetfulness, yellowish skin, lack of desire to eat and drink, etc., the treatment should be to replenish qi and nourish blood, can be used to replenish qi pills and so on. Avoid eating radish, tea, quinoa, etc. during the medication. 4. Yin deficiency and fire is common lumbar and knee soreness and weakness (lumbar and knee soreness and weakness), dry mouth and tongue, insomnia, dizziness and heartburn, tinnitus and spermatorrhea, heat in the hands and feet, yellow urine, stools, etc., the treatment of nourishing Yin and lowering fire (nourish the Yin essence and reduce the fire), can be used to Zhi Bai Di Huang Pills, etc.. It can be used as Zhi Bai Di Huang Wan (知柏地黄丸), etc. It is not recommended for patients with deficiency cold syndrome. The above drugs are recommended to be taken under the guidance of a physician, and should not be taken without authorization, so as not to delay the condition.