Pollen allergic rhinitis, belonging to seasonal allergic rhinitis, its symptoms are mainly based on nasal symptoms such as running nose, sneezing, etc. Some patients may have other allergic symptoms such as eye itching, rash, dry cough, etc. The patient may suddenly have frequent sneezing and a lot of running nose after a short time of exposure to pollen, and some patients may also have nasal congestion. Patients with this disease may suddenly experience frequent sneezing and large amounts of clear nasal discharge within a short period of time after exposure to pollen, and some patients may also experience nasal congestion, as well as allergic conjunctivitis symptoms such as increased tearing and red itchy eyes. In addition, allergic urticaria symptoms such as itchy skin, rash and irritating dry cough, asthma and other allergic asthma symptoms can occur. After the appearance of pollen allergic rhinitis symptoms, patients need to actively go to the hospital otorhinolaryngology or anaphylaxis department, according to the results of the examination and standardized treatment according to medical advice.