Why does frostbite swell
summary
Frostbite this disease should not be unfamiliar to everyone, especially in the cold winter weather is most likely to appear, the typical symptoms will have itching, swelling symptoms. Let's see why frostbite is swollen.
Why does frostbite swell
One: cold is the main cause of frostbite. The cause of the disease is that when the skin of patients with chilblain is cold (0-10 ℃), moist or cold and warm suddenly changes, the local small arteries contract, the arterial blood vessels are paralyzed and dilated for a long time, the veins are congested, and the local blood circulation is poor.
Second: in addition, the patient's own skin humidity, peripheral microvascular malformations, autonomic nervous dysfunction, malnutrition, endocrine disorders and other factors may also participate in the pathogenesis. Lack of exercise, sweaty hands and feet, tight shoes and socks and long-term outdoor work under low temperature can lead to frostbite. It is best to know the factors that are easy to suffer from frostbite, and actively prevent it.
Third: oral nicotinamide, nifedipine and other vasodilators. Salvia miltiorrhiza (20ml) was added to 500ml low molecular dextran for intravenous drip, which had the effects of dilating blood vessels, improving microcirculation, increasing blood flow and thrombolysis.
matters needing attention
Strengthen exercise, promote blood circulation, improve the body's ability to adapt to the cold; pay attention to antifreeze, keep warm, prevent moisture, do not wear tight shoes and socks; if frostbite occurs repeatedly, infrared radiation can be used for treatment to promote blood circulation.
