What reason is upper lip dry crack

summary

After entering the autumn and winter season, the weather gradually becomes dry and cold, and many people's lips begin to crack, crack and peel as in previous years, and some people even cause cheilitis and pain. So, what's the reason for dry lips? Now let me tell you something.

What reason is upper lip dry crack

First, the lip is mucous membrane, which has no sweat glands and no oil secretion function. Therefore, in dry season, the lips will dry easily. At this time, many people will lick or bite their lips with their tongue. Although saliva temporarily moistens the lips, it will evaporate quickly. At the same time, it will take away the lack of water from the lips. As a result, the drier the lips are, the more they want to lick, As a result, the more you lick your lips, the more dry it will be. This vicious circle results in cracks and peeling of your lips.

Second: saliva contains amylase and other protein substances. After water evaporation, amylase will stick to the lips, causing the contraction of deep connective tissue and wrinkle of lip mucosa, leading to more serious dry lips, even infection, swelling and pain.

Third: amylase protein residue in the lips, but also with the lip off cells together to form scab, because the scab under the tissue is not complete, if forced to tear off, it will cause more local exudation, thus forming more scab.

matters needing attention

The main reason is to eat more fresh vegetables, such as soybean sprouts, rape, cabbage, white radish and so on. You should wear a mask as far as possible to keep the temperature and humidity of your lips.