What causes itchy skin?

In winter, the climate is cold, skin metabolism slows down, pores are blocked, and sweat glands and sebaceous glands are at their lowest functional state. In winter, many people feel unbearable itching in their limbs and body after bathing or while sleeping. This is caused by dry skin, which is common in winter. Especially after taking a hot bath with a relatively alkaline bath solution at night, the itching symptoms are more obvious. Some people scratch the itchy area, and scratches appear on the skin. Sometimes you can even see light brown patches. Itching is most common on the calves, forearms, back, waist and abdomen. Itching can be triggered or worsened by emotional excitement, changes in temperature, drinking alcohol, or eating spicy foods. Dermatologists warn: You should not bathe too frequently in winter. People who love bathing should pay attention to bathing as often as your skin can bear. You don’t have to wash every day like in summer. When taking a bath, try to use neutral or weakly alkaline bath liquid or soap to prevent sebum from being destroyed, causing fish-like patches on the skin and causing itching. Many patients with itching symptoms report that the itching is most obvious in the calves, thighs, arms, back and other parts of the body. The doctor explained: This is because the skin and blood vessels are in a state of contraction in winter, and the secretion of sweat glands and sebaceous glands is significantly reduced. Moreover, the secretion of sebaceous glands that moisturizes the skin decreases with age. Doctors warn people with low skin oil secretion that the bath water should be 3 degrees Celsius higher than the body temperature, that is, the water temperature should be controlled at about 40 degrees Celsius. The bathing time should not be too long, and should not use bathing tools used for bathing in summer. Try to use weak alkaline baths. Or neutral soap, shower gel, etc. After bathing, moisturizer should be applied all over the body. You should drink more water, wear pure cotton underwear, avoid eating spicy food and drink less alcohol. If the itching worsens and the above measures are ineffective, you should go to the hospital to see a dermatologist as soon as possible. Otherwise, in severe cases, it will not only affect rest, but may even cause lichen-like or eczema-like changes, causing the skin to become thicker and rougher, and may even lead to skin infection after scratching. How should you take care of your skin in winter? Improve the skin's ability to withstand cold: you need to strengthen physical exercise and enhance your own physical fitness. Enhance your own vitality and make your skin healthy and shiny. Be prepared for cold protection: Keep your skin warm, because the cold north wind not only dries out the skin's moisture, but can also frostbite skin tissue, cause skin edema, and cause frostbite. Therefore, it is necessary to prepare winter clothing and pay attention to adding or subtracting it as the climate changes. Choose skin care products suitable for winter: In addition to moisturizing and moisturizing functions, winter skin care products should also contain appropriate oils to reduce the evaporation of skin moisture. Such as moisturizer, nutritional cream, hand cream, lip mask, anti-cracking cream, etc., which can protect the skin, make it soft and moisturized. Pay attention to moisturizing: In addition to using humidification, in a heated room, you should often sprinkle some water to maintain the humidity of the air and prevent the skin from drying out. At the same time, you should participate in more exercises to strengthen blood circulation and sweat secretion, thereby improving the skin quality. Surface humidity promotes metabolism. Skin care: Wash your face less often to prevent dry skin. Facial skin can be used to remove keratinized exfoliated cells through facial masks, massage, and scrub to prevent rough skin. Those with dry skin on their hands and feet can soak it in warm water before going to bed, and then apply glycerin and hand cream to prevent skin breakage. Generally speaking, when the human body lacks vitamin A, the skin is prone to dryness, scales, and even peeling and cracking. It is advisable to eat more foods rich in vitamin A, such as pork liver, eggs, cod liver oil, etc. You can also eat sesame (sesame oil), soybeans, peanuts and other foods regularly, which contain unsaturated fatty acids such as linoleic acid. Collagen has the functions of moisturizing, tightening, and locking water. It can be supplemented by foods rich in collagen, such as pig trotters, beef tendons, chicken feet, cartilage, and fish skin. You should also drink plenty of water and eat more fruits and vegetables. People who are prone to skin peeling can eat more foods containing vitamin A, such as carrots, beans, green leafy vegetables, fish, liver, milk, etc. Eat more fruits and vegetables, because vitamin A can promote epithelial growth, protect the skin, and prevent skin irritation. It has a good effect on preventing and treating chapped skin. You should also eat more fatty and sugary foods, which can increase the secretion of sebaceous glands and reduce dry skin. It is best to choose skin care products that contain moisturizing skin care ingredients such as vitamin B5, vitamin E, and aloe vera. Doctors suggest: 1. You can use anti-itch ointment containing mint and borneol to relieve itching. Do not use hormone-containing topical medicines at will. 2. When taking a bath, you should use a neutral or weakly acidic bath liquid that does not contain fragrance, preservatives, soap base and other chemical irritating ingredients. Apply emollient after bathing. If possible, use medical skin care products (only sold in pharmacies, Skin care products used under the guidance of a doctor). 3. Wear loose, pure cotton close-fitting clothes, and do not leave any chemical ingredients such as washing liquid on the clothes. 4. The indoor temperature should not be too high. You can use a humidifier or plant flowers and plants to maintain appropriate humidity to reduce the evaporation of skin moisture. 5. Drink water regularly and quantitatively, eat reasonably, and appropriately increase the intake of fat in food.