Uncle Shi: Newborns have many sebaceous glands, which function well and can secrete a lot of sebum. Sebaceous glands are abundant in scalp, forehead, hairline, behind ears, neck, back, perineum and body skin folds. Especially when newborns get more androgens from their mothers, sebaceous glands secrete vigorously in a short period of time, which increases sebum secretion. At first, many small red rashes the size of rice grains can be seen on the skin or scalp. After that, yellow and red spots will form. If it is stained with dust again, it will form a thick yellow scab, which will turn black after a long time and have an itchy feeling. Known as "Uncle Shit" among the people. In fact, this is a disease called seborrheic dermatitis. Need to go to the hospital for dermatologist treatment. How to get rid of these dirty things at home? After the newborn falls asleep at night, gently rub it on the skin with scalp oil. After a night of moisturizing, it can soften the scalp. The next day, you can wash off a part of the scalp with shampoo or soap and warm water, so that you can gradually clean all the scalp after repeated times. Be careful not to tear or dig down the dirt on the head to avoid damaging the scalp. Infantile eczema: small red papules or erythema, scattered or clustered at first, gradually increased, with small blisters, yellow-white scales and scabs, exudation, erosion and secondary infection. Children fidget and cry at night, which affects their sleep and often itches everywhere. Because eczema lesions are on the epidermis, it will not leave scars after healing. & gt