In daily life, many people are troubled by itchy nose. Itchy nose may have the following causes: rhinitis, weather, allergies. 1, rhinitis: itchy nose belongs to a common symptom of rhinitis. Acute rhinitis early can be nasal itching, sneezing and runny nose as the first symptoms. It is a good idea to take advantage of the fact that you are weak and often inhale unclean gas. Patients with rhinitis may feel dry and uncomfortable in the nose, with itching and a foreign body sensation. The occurrence of rhinitis has a lot to do with climate and occupational factors. 2, weather factors: for example, the northern spring is a dry and windy climate, the human body moisture easily through sweating, breathing and a lot of loss, coupled with the weather changes erratically, easy to cause the body within the fire. So many people will have dry and itchy symptoms in the nasal cavity. Involuntarily, they will use their hands to dig their nostrils, which will result in more and more itchy digging. 3, allergies: in the spring, the air is covered with pollen, many patients allergic to pollen will lead to itching in the nasal cavity, another one of the most common allergens in the air is dust mites. Therefore, it is recommended to wear a mask when traveling in daily life. There are several common causes of itching inside the nose as mentioned above. Patients are advised to treat the symptoms through physical therapy when they are relatively mild, and can use physiological seawater to rinse the nasal cavity to relieve the symptoms of itching.