Spring and summer are the active periods for bee colonies, and outdoor activities may encounter bee stings. How to avoid being stung by bees? How to provide first aid if stung? The reporter interviewed experts in bee research and medical treatment. Associate Professor Guo Jun from the School of Life Science and Technology at Kunming University of Science and Technology introduced that there are over 20000 types of bees worldwide, and in China, the common ones that sting people include Italian bees, Chinese bees, bumblebees, and wasps. Among them, bees are small in size and their stings have hooks. After stinging a person, the needle may be left in the body, causing the bees to die. They usually do not actively attack people; Large bodied bumblebees do not have hooked stingers and generally do not actively attack humans; Hornets, also known as bumblebees, do not have hooked stingers and can repeatedly attack humans. In addition, they are highly toxic and pose the greatest risk to humans. Under what circumstances do bees sting people? Guo Jun said that bees generally do not actively attack humans. Only when the normal activities of bees are disrupted, or when special colors or odors attract the attention of bees, will humans be attacked by bees. In addition, bees protect their food and may launch attacks when disturbed while picking flowers. How to avoid being stung by bees? Guo Jun suggests that when engaging in outdoor activities, try to stay away from grass and shrubs, and avoid approaching beehives to avoid disturbing them. Bright blue clothing is easy to attract bees to approach, and there is a possibility of being attacked by bees outdoors; And bees have a fear of black, seeing it as a threat and may also initiate attacks. Therefore, when engaging in outdoor activities, avoid wearing bright blue and black clothes near bee farms. Bees are more sensitive to moving objects and have more accurate positioning, so squatting or lying down is the best way to avoid them when they are being "stared at" by bees. Don't panic, stay calm, "Guo Jun said. When humans feel bees approaching, their panicked actions are more likely to make bees feel threatened and attack them out of their survival instincts. The best way to deal with bees approaching is to hold your head and squat or lie down to keep still, covering the exposed area of your body. When bees no longer feel threatened, they will take the initiative to fly away. If you have already been attacked by a bee colony and have to avoid it, it is recommended to run against the wind. Most bees do not fly fast against the wind. What should I do if I am stung by a bee? Within 6 hours is the 'golden emergency period'. Guo Jun introduced that after being stung by a bee, if there are residual stingers on the skin, you can gently remove them with your nails to avoid injecting more venom into the body; Immediately clean the wound, although the acidity and alkalinity of venom from different bee species vary, in the wild environment, rinse the wound with clean water. Guo Jun reminds: "After being stung by bees, people may develop allergic reactions, which vary greatly among individuals. It is recommended to seek medical attention immediately for individuals with allergies and children who are stung. During the transportation, attention should also be paid to the physical reactions of the stung person." Jin Yichao, director of the Dermatology Department of Yunnan First People's Hospital, said that after being stung by bees, local pain, redness, and bleeding petechiae may appear near the wound, which may also cause whole body chills, fever, headache, dizziness, and more serious cases may lead to anaphylactic shock or even death. When stung by highly toxic bees or by a group of bees, it is recommended to go to the hospital for emergency treatment as soon as possible. ”Jin Yichao said that after the venom enters the human body, it is necessary to assist in anti allergic treatment as soon as possible, apply antibiotics such as Mopirocin ointment and bandage it; At the same time, it is necessary to dynamically observe the subsequent redness and swelling of the skin and systemic allergic reactions. If any abnormal physical conditions occur, immediate hospitalization and treatment should be sought. (New Society)