First aid for frostbite
When deep ( III -I V degree) frostbite appears tenderness in the affected area of the body, sensitivity is lost, the skin becomes pale, cold to the touch.Active movements frostbitten toes or hands is not possible.
With deep frostbite sure to wrap the affected part of the body than a warm and, if possible exposed to cold injury, arm or leg, apply a layer of gauze, then a thick layer of cotton wool, gauze again, the top oil cloth or plastic bag.
For a long time it was thought that by helping with frostbite, it is imperative to rub frostbitten areas of the body with snow and how to deliver more human in a warm room.
Such an action is unacceptable!Firstly, because the rubbing of the skin aggravates frostbite with snow and ice crystals injure her, and it threatens to infection and suppuration frostbitten areas.Secondly, the rapid warming in a warm environment can lead to tissue necrosis.
To prevent necrosis, while warming frostbite should not be quick!
Before putting the victim into a warm room,
In no case can not warm the frostbitten areas with hot baths or dry heat.This dramatically increases metabolism, which leads to the development of necrosis (necrosis) of tissue, as the circulation in them have not yet restored.Affected
areas of the body can not be lubricated with grease or ointment.This aggravates the cooling, can injure the skin.
necrotic changes in tissues in frostbite not rarely develop immediately, but after 3-5 days after exposure.Gradually increases edema with severe cyanosis of the skin, blisters appear.It shows a deep tissue damage and lead to serious consequences.Therefore, in any case after the victim first aid should always see a doctor.