Dry mouth, bad breath, insomnia, bad sleep belongs to the category of “insomnia” in Chinese medicine, which may be caused by dampness-heat in the spleen and stomach (the spleen and stomach feel dampness-heat evil qi), yin deficiency and fire (deficiency of yin and essence in the body, and hyperactive fire in the body), and incompatibility between the heart and kidneys, and so on, and it is necessary to take some proprietary Chinese medicines to regulate them. 1. Damp-heat in the spleen and stomach: symptoms such as dry mouth, bitter taste and bad breath may occur. The principle of treatment is to clear away heat and dampness (remove heat and dampness in the body), so you can take Ginseng and Atractylodis Macrocephalae Pills, etc., to promote digestion and alleviate the symptoms. 2. Yin deficiency and fire exuberance: insomnia and night sweating (sweating abnormally after going to sleep and stopping after waking up), dry mouth and dry throat and other symptoms may occur. Generally, treatment is based on the method of nurturing yin and draining fire, and Zhi Bai Di Huang Pills and other pills can be taken to alleviate the symptoms. 3. Heart-kidney disharmony: symptoms such as dry mouth and throat, insomnia and dreaminess may occur. Generally, the treatment guideline of nourishing yin and lowering fire (nourishing the yin essence and lowering the fire) and communicating with the heart and kidneys (the fire of the heart descends and the water of the kidneys rises, which are in mutual control) is adopted, and medicines such as Tianwang Xindan can be taken to alleviate the symptoms. If there are symptoms such as dry mouth, bad breath, insomnia, sleeplessness, etc., it is recommended that the patient consult a doctor in a timely manner to clearly diagnose the cause of the disease, and then carry out targeted treatment, and follow the doctor’s instructions to take medication, so as not to cause adverse effects.