Taiyuan, January 31 (Xinhua) -- With the advent of the winter vacation, ice and snow tourism continues to heat up, and many tourists find that their hands and feet will be "itchy" after staying outdoors in the cold for a long time. Experts remind that it is easy to get frostbite in a low temperature environment for a long time, and it is necessary to prevent it.
The human body can regulate body temperature through the nervous and endocrine systems, but there is a limit to this regulation. Wang Yun, executive director of the ** Department of Taiyuan Hospital of Peking University First Hospital, said that once the body is in a low temperature and humid environment for a long time, the blood vessels on the surface of the body will spasm, blood flow will be reduced, and the distal blood circulation of the distal limbs will be damaged, resulting in frostbite, so the peripheral parts such as ears, nose, cheeks, fingers, and toes are easy to be "frozen".
Experts remind that once there is itching, tingling, numbness and discoloration in the exposed parts, it is necessary to be alert to the occurrence of frostbite. After frostbite, it is necessary to leave the cold environment as soon as possible and rewarm quickly, covering the affected area with clothing or warm hands to maintain adequate blood supply, and then soak the frozen area with warm water of 37 to 40 as soon as possible.
Sheng Yu, deputy chief physician of the ** Department of the First Affiliated Hospital of Harbin Medical University, said that after frostbite, it is not appropriate to rub the affected area with objects or force, in addition, it is not appropriate to rewarm the water temperature too high, rewarm with dry heat such as fire roasting, or put it at a low temperature to rewarm slowly. Wang Yun also reminded that wiping the frozen area with ice cubes and other objects may further damage the tissues, and it is necessary to keep the affected area clean and hygienic after frostbite, especially not to scratch with your hands. If frostbite is severe, seek medical attention promptly.
Experts remind that the most important thing to prevent frostbite is to keep warm. When going out to play and exercise in cold areas, be careful to wear appropriate clothing according to the temperature, especially to keep the face, ears, hands and feet warm. In addition, it is necessary to pay attention to maintaining a balanced daily diet and proper physical exercise, ensuring adequate calorie intake, and enhancing resistance to cold.
Drafting: Ma Xiaoyuan.