Recently always sneezing and running nose, nose also itchy, may be allergic rhinitis, vasomotor rhinitis, non-allergic rhinitis with eosinophilia and other diseases. 1. Allergic rhinitis: allergic rhinitis is mainly due to the joint action of genes and the environment, and the main symptoms of patients are itchy nose, paroxysmal sneezing, watery nose, nasal congestion, etc. In addition, allergic rhinitis can also lead to nasal congestion. In addition, allergic rhinitis will also lead to itchy eyes, tearing, itchy throat and other symptoms. 2. Vasomotor rhinitis: the etiology and pathogenesis of vasomotor rhinitis have not been clarified, and it is considered to be caused by autonomic dysfunction. Patients will have symptoms such as nasal congestion, itchy nose, episodic sneezing, and large amount of clear nasal discharge, etc. In addition, patients with colds will also have symptoms such as loss of sense of smell and headache. 3. Non-allergic rhinitis with eosinophilia: it is a kind of nasal disease characterized by significant increase of eosinophils in nasal secretion with clinical symptoms very similar to allergic rhinitis, sneezing, runny nose and other symptoms, but the immunological examination of allergens (in vivo and ex vivo tests) are negative, and it can also be the reason for the itchy nose with sneezing and running nose. When patients have the phenomenon of sneezing and runny nose and itchy nose, they should seek medical treatment in time and make a clear diagnosis after systematic examination.