Attentive moms may have noticed that skin barrier function was mentioned in the previous two articles about atopic dermatitis and ligamentous dermatitis. What is skin barrier function? The skin covers the outermost layer of the baby’s body and is in direct contact with the outside world. It acts as a barrier, blocking various harmful substances from the outside world and preventing the loss of nutrients from the body, making it the first line of defense for the baby’s immune system. If the baby’s skin is damaged, its barrier function will be damaged, a variety of pathogenic microorganisms and allergens will enter the baby’s skin, resulting in skin inflammation. At the same time, the impaired barrier function will also cause the baby’s skin to lose water (medically known as transepidermal water loss), resulting in dry skin and aggravating skin inflammation. Therefore, it is important to protect and restore your baby’s skin barrier function. The dry air of fall and winter tends to exacerbate your baby’s impaired barrier function. The following 5 reminders of daily care will help protect or restore your baby’s skin barrier function in winter: 1, you can give your baby a bath every day, but the temperature of the bath water should not be too high, 37-38 ℃ in winter is appropriate; each time you take a bath time should not be too long, it is best to control within 10 minutes. 2, bath, soap do not use more, with 1 ~ 2 times a week can be, otherwise it will be the baby skin surface sebum wash off, aggravate skin dryness. 3, after the bath, to use a soft towel to gently dry the baby’s skin, while the skin is moist, as soon as possible (preferably within 3 minutes) will be moisturizing moisturizer evenly coated with baby’s whole body, to lock the skin moisture, prevent dry skin. Winter moisturizer is best to use more than two times a day, for especially dry skin baby can even be unlimited, found dry at any time to apply. If the baby at the same time also in the external ointment, be sure to wipe the ointment after wiping moisturizer, otherwise it will affect the drug absorption. 4, to the baby after washing hands and face should also dry as soon as possible. Don’t forget to wipe a layer of moisturizing moisturizing cream in time after drying to prevent the skin from losing water. Don’t forget to rub your hands together when rubbing the moisturizer on your baby so that it is fully absorbed. 5, the baby’s moisturizing moisturizer to choose children’s products, less irritating, the whole body application will be safer. If the baby’s skin is very sensitive, easy to allergies or are suffering from skin diseases, it is best to choose fragrance-free and color medical moisturizers.