Pale edema of the nasal mucosa is one of the common symptoms of allergic rhinitis. Allergic rhinitis (allergicrhintis), also known as allergic rhinitis, is an allergic disease of the nasal mucosa, and can cause a variety of complications. Preventive care: 1, the nose is the entrance to the human respiratory tract, it is a multifunctional regulator, the role of purification, temperature regulation, moistening of the inhaled air. Once a person’s resistance is reduced, or by the wind, the pathogenic bacteria gathered in the nasal cavity will rise and cause nasal mucosa lesions. If germs invade the larynx, trachea and lungs through the nasal cavity, they can cause laryngitis, bronchitis and pneumonia. Therefore, we need to protect the nose, know the knowledge and methods of nose care, especially in the winter and spring seasons when respiratory diseases are prone to occur. 2, early in the morning when washing your face, rub the nose and lips with a towel, the skin on both sides of the nose and around, to slightly ruddy, hot feeling. You can also use your thumb and index finger to hold the root of the nose and pull it down several times with force from top to bottom. You can also use your thumb and index finger to reach into the vestibule of the nasal cavity and hold the nasal septum cartilage; gently pull down several times. These mechanical stimulation massage can make the blood vessels around the nose congestion, improve blood circulation, strengthen nutrition, maintain a normal temperature, so that it can adapt to the outside temperature as soon as possible to improve the nose’s ability to withstand the cold. 3, put an end to the habit of digging the nose with your hands. Usually blow your nose, blow nostril by nostril, do not gouge too hard, so as not to press the nasal secretions into the perinasal cavity sinus, nasopharyngeal tube, the occurrence of sinus, middle ear cavity infection; gouge airflow pressure is too large, will also damage the nasal mucosa, so that capillary fracture, resulting in rhinorrhea. 4, in case of abnormally dry outside air, drink more water, rinse your mouth, improve the nasopharyngeal cavity, the relative humidity of the nasal cavity, the conditions can eat ‘some fruits such as orange in, apple, pear, sugar cane, etc.; also available cups of hot boiling water, the steam will be inhaled to improve the humidity and blood flow in the nasal cavity, to strengthen the nasal function. Foreign countries believe that this method can also cure the flu, called “nasal heater”, advocated by the French Nobel laureate Dr. Laufer of the Barthold Institute. He observed that when steam heated to 42.8 degrees Celsius was introduced into the nasal cavity, it could kill the influenza virus. Since the influenza virus cannot survive at this temperature, the infected cells die, and the lysosomes released from the dead cluster of cells also kill all the influenza virus. In this way, the patient can kill all the influenza viruses by doing it twice a day for half an hour each time with an interval of two hours. May wish to try. 5, usually strengthen exercise, mainly exercise the nasal mucosa to adapt to sudden changes in temperature and respiratory resistance, such as: morning and evening wash your face with cold water, wipe your body, do gymnastics in the early morning, often go to breathe fresh air, jogging, walking, etc.