Symptoms of frostbite

summary

Chilblain is common in winter, due to the cold weather caused by local skin repeated erythema, swelling damage, severe cases can appear blisters, ulcers, course of disease is slow, warm climate after self-healing, easy to relapse. 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. The symptom of chilblain? Let's talk about it

Symptoms of frostbite

Chilblain often occurs in early winter and early spring, especially in children, women and those with poor peripheral blood circulation. These patients are often accompanied by cold skin, cyanosis and hyperhidrosis.

Skin lesions often occur in fingers, back of hands, face, auricles, toes, foot margin, heel and other places, often distributed on both sides. The common damage is localized congestion dark purplish red swelling edema erythema, the boundary is not clear, the edge is bright red, the surface is tense, glossy, soft

The color will fade after local pressing, and the red color will gradually recover after pressure removal. Serious person can produce blister, rupture to form erosion or ulcer, after healing, remain pigmentation or atrophic scar. Itching is obvious, aggravating after meeting heat, and sore after ulceration.

matters needing attention

1. Strengthen exercise, promote blood circulation, improve the body's ability to adapt to cold; 2. Pay attention to antifreeze, keep warm, prevent moisture, do not wear tight shoes and socks; 3. It is not suitable to soak in hot water or bake immediately after freezing; 4. The patients with other related diseases should be treated actively;