If the weather is dry and the nose is blocked, there are usually the following reasons: 1, because the weather is dry so that the indoor temperature and humidity is too low, the air is too dry when the body is dehydrated, the lack of water will cause the nose to dry, if not timely relief will lead to rhinitis, or lead to wind-heat type of cold. If the weather is too dry and the nose is blocked, you should drink more water.2. Also, the lack of vitamins and trace elements in the body will cause the nose to become dry.3. If you eat too much greasy diet or high salt, high sugar and high fat diet, or eat too much spicy food, it will also cause the nose to become dry, especially when the weather is dry and the nose will become blocked.4. When people are anxious and on fire, and when the weather is dry 5. In patients prone to allergic rhinitis, the clinical condition of nose blockage will occur in dry weather.