What is the reason for cold feet sweating?

It's very cold in winter, but some people often sweat on their feet! I often sweat in winter, and the heat dissipation speed of "sweaty feet" is 25 times faster than that of "dry feet", which is easy to get frostbite.

So why do feet often sweat in winter?

1. Weakness is obviously related to seasonal changes.

Chinese medicine believes that sweating at night belongs to night sweats due to yin deficiency, and sweating during the day belongs to spontaneous sweating due to qi deficiency.

have night sweat

Sweat when you sleep, and sweat when you wake up. Night sweats are often caused by hyperactivity of yang due to yin deficiency, yin not controlling yang, and sweating in body fluids, so they are often accompanied by symptoms such as five upset, insomnia, dry mouth and throat. Common in patients with pulmonary tuberculosis infiltration.

spontaneous perspiration

Spontaneous sweating means that you often sweat without other factors, which has a great relationship with the patient's own physical condition. Spontaneous sweating is mostly related to physical weakness such as lung qi deficiency and body fluid leakage, and also has symptoms such as mental fatigue, fatigue and chills. So this phenomenon often appears in children or patients with poor health.

2. Primary palmar hyperhidrosis

It is caused by excessive sympathetic nerve activity that dominates the secretion function of sweat glands on the soles of feet.

40%~45% patients with palmar hyperhidrosis are accompanied by plantar hyperhidrosis, 25%~30% with axillary hyperhidrosis, and 65,438+0% ~ 5% with head and face hyperhidrosis.

Hands and feet are sweaty and cold, and sometimes the temperature of hands and feet is only about 33℃, which is 2℃~3℃ lower than that of those without sweat. Frostbite is prone to occur in winter, and there is a phenomenon of "peeling", and occasionally herpes (an eczema in which sweat accumulates in the skin of palms and toes when hands and feet sweat).

What should I do if my feet sweat in winter?

1. It is impossible to wash shoes often in winter. Prepare a shoe dryer, and proper sterilization is beneficial to foot comfort. After drying, the shoes have less residual moisture and are more comfortable.

Generally speaking, thick socks keep warm in winter, but people with sweaty feet are prone to sweat when socks are thick, and are more uncomfortable when they are wet. So socks should be thick enough.

3. Soak your feet with tea for about an hour and stick to it for one month. It is also good to choose to soak your feet with vinegar.

4. Change socks frequently, because washed socks are more absorbent and more comfortable, which can reduce the influence of sweating.

5, insoles should use shoes with multiple air holes, and leather-like insoles can be appropriately selected. The soles of the feet are not easy to sweat.

6. Shoes with good air permeability and air holes should be selected, so that internal air circulation can reduce water vapor without heat accumulation.