After autumn, the number of seborrheic eczema, which is common in middle-aged and elderly people, increases again. This is because – the weather is getting drier and the secretion of emollient ingredients such as sweat and sebum from the skin decreases, the skin starts to become less elastic and lose its luster, followed by dry skin and the appearance of seborrheic eczema. This eczema can appear similar to broken porcelain-like fine cracks, especially the bilateral calf shin front obvious, often pinprick itch, ants crawling-like feeling, and scratching and scratch marks, oozing blood. Artificial aggravation of dryness 1, such as bathing too often, the water temperature is too high. Some patients, in order to get comfortable for a while, often adjust the temperature of the bathing water higher, although the itchiness is reduced for a short time after bathing, but because of the high water temperature, the capillaries on the skin surface expand and accelerate the evaporation of water from the body surface, which will aggravate the dryness of the skin. 2, the misconception that itchy skin is caused by bacterial infections on the skin surface, so each bath must use body wash or soap. However, these cleaners for dry skin, is undoubtedly adding to the problem. 3, long-term stay in the air-conditioned environment, so that the skin becomes dry. 4, excessive scratching. It can damage the barrier function of the skin. So, how to avoid the occurrence of eczema? 1, remove the cause In addition to the above causes, lack of lipid eczema may also be related to some underlying visceral diseases, so you need to find out the primary disease and remove the triggering factors, so as to effectively improve the skin symptoms. 2, oral antihistamine drugs At the same time, you can apply emollients externally, after bathing, the best effect.