If the nose does not work and the mouth is dry, there are usually several factors as follows. 1. The most common factor is infectious factor, usually in the cold will appear the above symptoms, the nose does not pass along with the mouth dry, you can apply anti-inflammatory drugs, such as anti-inflammatory antibacterial can reduce the inflammation, erosion and exudation and edema in the nasal cavity, will make the nose ventilated, and relieve the dryness of the mouth. 2. The anti-inflammatory drugs that can be taken, such as levofloxacin or roxithromycin, azithromycin, etc. can treat the above symptoms. 2. If the cold is caused by viral factors and the nose is not clear and the mouth is dry, antiviral drugs can be taken, such as oseltamivir. 3. From the perspective of Chinese medicine, it is a wind-cold type of infection, so you can apply herbal medicines to dispel wind and cold, you can take the Chinese medicine Banlangen or Shuanghuanglian, etc. 4. 4. Drinking a lot of warm water can also help to relieve the above clinical effects. 5. Applying nasal vasoconstrictor drugs, such as ephedrine nasal drops, can relieve the above symptoms.