[Ben.net - Dr. Shoe] When the weather is hot, people's double script body is very easy to sweat, wear shoes without socks, will make the skin on the feet directly soaked in sweat. If leather sandals or plastic sandals with poor breathability are worn, the parts of the feet that touch the shoes will turn white, and because the fungus will grow easily in a hot and humid environment, it will also induce foot fungal infections and lead to foot tinea ( beriberi). In addition, the feet and the shoes are often in direct contact with each other, which tends to make the stratum corneum of the heel, toes, etc., often in contact with the shoe longer and thicker, causing the feet to become “keratinized†and increasing the chance of occurrence of phlegm, ie, “mite†and “cornerâ€.
Wearing sandals barefoot also makes it easy for people to catch colds (hot gale). Especially when it rains, they wear open-toed sandals and walk in the water. The water is mixed with various contaminants. Direct contact with the skin may cause harm to the body. In addition, the water in the area is relatively cool, and it is easy for the barefoot to allow cold air and moisture to enter. Feet caught cold, can cause stomach pain, low back pain and so on. The foot is farthest from the heart, the blood supply is the worst, the fat layer of the foot is thin, and the heat preservation is poor, so the sole of the skin has the lowest temperature and is extremely vulnerable to cold. Once the feet are cold, the capillaries in the upper airway mucosa can be reflexively contracted, resulting in a significant decrease in resistance. At this point, the virus that lurks in the nasopharynx will enter and cause a cold and other diseases.
In addition, many sandals and slippers are made of chemicals. Most of them are made of polyvinyl chloride resin, plasticizers are added at the same time, and some foam shoes are added with a foaming agent. These chemicals have a certain irritation to the skin, and some people come into contact with these substances will have an allergic reaction, appear red skin, pimples, erosions or blisters and other symptoms, typically slippery dermatitis, which is due to frequent wear A kind of contact dermatitis occurs with cool (drag) shoes. Red or red-brown rash occurs on the parts of the feet where the instep of the feet contact with the shoes. The shape is basically the same as the shape of the upper, and the lines of the surface skin are deepened. Desquamation. Conscious itching, due to scratching, may have erosive exudate. Slippery dermatitis mostly occurs in the summer. In other seasons, due to wearing socks, the skin does not come in direct contact with the shoes and generally does not cause the disease.
Therefore, try not to wear sandals barefoot, when the weather is hot, you can choose a thin cotton socks, so you can absorb sweat well, if necessary, you can add a pad of absorbent cotton insole better. People with a history of skin allergies to plastic sandals are better off wearing cloth sandals or bamboo sandals.
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