The annual Yangliuxu Carnival has arrived as scheduled and will continue until late May. Experts from the Environmental Health Department of the Municipal Center for Disease Control and Prevention suggest that in the face of flying fluff, especially "allergy stars" who can hide, it is necessary to take protective measures when going out. Carrying "private goods" can easily cause sensitization. Poplar flowers are not flowers, and willow catkins are not catkins either. They are a mixture of seeds released from the cracking of willow fruit capsules and the attached hairs (flocs) on the seeds. Willow catkins are actually a process in which willow mother trees use wind to spread seeds. According to experts from the Environmental Health Department of the Municipal Center for Disease Control and Prevention, willow catkins have little impact on the general public, but their surface is prone to absorbing allergens such as pollen and dust, which can cause allergies in some sensitive populations. The main symptoms include itching, redness, and tearing of the eyes; Respiratory symptoms include watery nasal discharge, nasal congestion, frequent sneezing, itching in the throat, coughing, and in severe cases, wheezing, asthma, etc; Symptoms such as dryness, redness, itching, and wheals may also appear on the skin. During this period, there is a clear periodicity and seasonality in the flying catkins of willow trees. Influenced by tree species, heat island effect, and microclimate temperature, the flying catkins period generally lasts for about 50 days from early April to late May throughout the city. In specific areas, if there is no obvious precipitation, cooling, strong winds, etc., flying fluff generally affects for about 20 days, and the high incidence period is usually about a week. Like other allergies, it is best for sensitive individuals to stay away from allergens and stay indoors as much as possible during the day. Beijing has previously released the first forecast for willow catkins flying this year. The peak period for willow catkins flying is from 10:00 to 16:00 in a day, with the highest number usually occurring at noon. Therefore, sensitive individuals should try to avoid going out during this time period as much as possible. Even if they need to do outdoor activities, they should do so during times when there are fewer willow catkins, such as in the morning, at night, after rain, etc. In addition, indoor ventilation should close the screen windows, pay attention to indoor hygiene, perform wet cleaning, and turn on the air purifier if necessary. These areas should be protected to prevent fluff from entering the nose. The fluff is small and easily inhaled into the nasal cavity, which can lead to nasal congestion, nasal discomfort, runny nose, sneezing, and even more serious respiratory symptoms or diseases such as asthma. Experts from the Environmental Sanitation Institute suggest that sensitive individuals should wear masks for protection when going out. Masks should be worn according to their instructions, covering the nose, mouth, and chin completely to maintain a tight fit between the mask and the face. Masks with better sealing have better protective effects, but appropriate masks should be selected according to individual physical conditions. Preventing fluff from entering the eyes and flying fluff from entering the eyes is difficult to remove, which can cause redness, swelling, and tears in sensitive people's eyes. The large amount of dust and bacteria carried on it can also enter the eyes and cause inflammation. Therefore, when going out, wearing scarves, goggles, glasses, etc., especially for those who ride out, the risk of flying debris entering the eyes increases, and eye protection must be done well. For people with sensitive skin, try to avoid skin contact with flying fluff, otherwise the skin will itch uncontrollably, and even become red, swollen, and inflamed. When going out, you should 'wrap' yourself up, wear a hat, and wear long clothes and pants. After the skin is stained with fluff, it should be removed in a timely manner, preferably by washing with warm water, which can help prevent allergies or alleviate allergy symptoms. In addition, when allergic symptoms appear on the skin, do not scratch. Gently patting, applying cold compress, and applying anti itch medication can alleviate the symptoms. Don't bring flying catkins home. The Beijing Center for Disease Control and Prevention reminds citizens that if they experience allergic symptoms, they should seek medical attention promptly and use anti allergic drugs under the guidance of a doctor to relieve symptoms. Do not self medicate or ignore symptoms to avoid worsening the condition. In addition, do a good job of cleaning up flying debris at home: wash your hands first after going out and returning, and clean your nose and face at the same time, and promptly clean up the flying debris on your clothes. During the high incidence period of willow catkins, it is necessary to promptly clean or spray water to humidify indoor catkins, especially those attached to heating appliances such as electric heaters, as well as furniture and floor surfaces; Indoor cleaning can be done promptly using a vacuum cleaner. Regularly clean the interior of the car and promptly remove flying debris and dust. Pay attention to fire safety, strictly prohibit littering cigarette butts, and strictly prohibit open flames from igniting flying fluff. (New Society)