It’s that time of year when it’s freezing cold, and unlike the sluggish landscape outside the window, the dermatology clinic is still bustling with people. Many of these people are suffering from a disease called “winter dermatitis”, but what this disease is all about may not be known. The main manifestation of this is the appearance of fine scales on the skin, and in severe cases, “broken porcelain”-like cracks can be seen, especially on the front of the shins of the lower legs, and dry cracks can also appear on the back of the hands. It is formed by the secretion of sebaceous glands on the skin surface. In winter, sebaceous glands, sweat gland secretion will be reduced, and the skin water diversion don’t itch, serious can also lead to insomnia. But the question arises, the same over the winter, why some people get sick, some people do not? One of the key reasons for this is – bathing. The human skin itself has a layer called “sebaceous film” on the surface of the skin, which is made up of sebaceous glands, sweat loss, so that the skin itself is in a relatively dry state. This time if we then frequent bathing, and external use of strong alkaline soap or body wash, or like to use hot water bath, more will aggravate the degree of dry skin. Therefore, the first treasure against winter dermatitis, is to reduce the number of baths, try not to wash every day, the water temperature to not more than 45 ℃ is appropriate, should not use alkaline too strong washing bath products. It’s not necessarily true, because different people have different sebum secretion capacity, there will indeed be some people in the winter sebum secretion of their own low, even if there is no external aggravating factors, there will still be too dry skin induced winter dermatitis may. This time, we need to use the second magic weapon, the external application of moisturizing lotion, to give the skin an extra layer of protection. Of course, if some friends already have the symptoms of winter dermatitis, or need to go to the dermatology clinic to seek professional help, but the above-mentioned two treasures, is the basis of all prevention and control, I hope we can pay more attention to the dry weather, “careful” bath!