How to distinguish frostbite

summary

Frostbite is characterized by swelling and itching, mainly in winter, and with the gradual warming of the weather, frostbite will disappear. Let's see how to distinguish frostbite.

How to distinguish frostbite

First of all: frostbite is very seasonal. Frostbite incidence is winter to spring must go, the peak is equivalent to the winter solstice to the beginning of spring, and other diseases damage is heavy in winter and light in spring, from this point can be a good judgment of frostbite.

Secondly, the damage site of chilblain was fixed every year, with clear boundary, no fusion, no expansion, no extension, and the filling time of blood vessels was significantly delayed.

Finally: local skin rewarming was lower than surrounding skin, and rewarming was higher than surrounding skin after thermal radiation. However, if chilblain does not heal for a long time or cannot be cured for a long time, the doctor should be asked to find out the cause so as not to delay the illness. When you suspect that you have chilblain, it's best to let your doctor make a diagnosis and then use drugs.

matters needing attention

Pay attention to keep warm, protect easily frozen parts, such as hands, feet, ears, etc., and wear gloves, thick socks, cotton shoes, etc. After the shoes and socks are wet, they should be replaced in time to keep them dry. In addition, when the weather is cold, we should pay more attention to physical exercise to improve the body's ability to resist cold.