Eczema patients to keep the skin dry or moist, need to be based on the state of eczema to decide, as follows: First, keep the skin dry: when eczema has oozing, this time you need to keep the skin dry. Clinical common acute eczema will have oozing, this time you can use 3% boric acid solution, skin disease lotion, Ganlin lotion and so on wet compresses or scrub, this will reduce the eczema oozing, relieve eczema. Second, keep the skin moist: when eczema is dry, need to keep the skin moist. When eczema is dry, the skin barrier is damaged, the moisture in the skin will be lost percutaneously, this time will further aggravate the eczema dry, so you need to use emollient drugs to keep the skin moist, the more commonly used are glycerin, white petroleum jelly, or the medical skin care products of the device.