Allergic rhinitis (also called allergic rhinitis) is an allergic disease that occurs in the mucous membrane of the nasal cavity and is mainly characterized by itchy nose, sneezing, clear rhinorrhea (mostly large amounts of watery rhinorrhea) and nasal congestion. On examination, the nasal mucosa is mainly edematous. It can cause sinus mucosa causing allergic sinusitis, and a few patients can induce asthma. There are two types of allergic rhinitis: perennial allergic rhinitis (which occurs throughout the year) and seasonal allergic rhinitis (which occurs in a particular season of the year, also known as “hay fever”). The onset of the disease is closely related to genetics and the environment, and the incidence has increased significantly in recent years, mainly related to environmental pollution. Clinical manifestations are: 1. Nasal itching, caused by the stimulation of sensory nerve endings in the nasal mucosa, some patients can cause itching of the external nasal skin, eyes and throat. 2. Sneezing Paroxysmal attacks, more than three or even more than ten in a row. 3.Runny nose A large amount of clear water-like nasal discharge. 4.Nasal congestion The degree of nasal congestion varies in severity and is proportional to the degree of edema of nasal mucosa. 5.Decreased sense of smell Mostly caused by different degrees of nasal mucous membrane edema blocking the olfactory area. Generally speaking, the symptoms of nasal congestion, runny nose, nasal itching and sneezing caused by cold will not exceed 1 week, accompanied by symptoms such as fever, cough and sore throat, and rarely recur within a short period of time (2 or 3 weeks). Treatment is divided into two main aspects: 1. Prevention is the main focus, avoid contact with allergens, such as pollen, house dust, mites, etc.. This can reduce the number of attacks and the number of medications. 2, drugs and immunotherapy. There are many different types of drugs available, and due to individual differences, each patient reacts differently to different drugs, so you can choose the right drug for you according to your reactivity to different drugs. Intermittent medication can be used to control the symptoms, continuous oral for 3 days, the symptoms disappear, the drug is stopped for observation, to be taken again in the next attack, without long-term continuous medication. Finally, I would like to remind all patients that there is no cure for allergic rhinitis, and I suggest that they should not pursue a once-and-for-all treatment, which is unrealistic and cannot be achieved at the current medical level. The disease only affects the patient’s quality of life is more obvious, there are generally no serious consequences, but a very small number of patients may induce asthma and sinusitis, asthma may also be life-threatening when serious; secondly, allergic rhinitis caused by sinusitis, such as still failure to timely medication, can cause chronic sinusitis and nasal polyps may. Therefore, the majority of patients and friends, can not ignore the disease.