Sunburn, because the sun exposure time is too long, ultraviolet rays through the outermost skin cells, damage the microvasculature, so that capillary dilation, increased permeability, local skin inflammation, only to let the skin produce redness and pain. According to Chinese medicine, milk is sweet and slightly cold. It has the wonderful function of emolliency, skin care and whitening. And modern medicine also confirms that the iron, copper and vitamin A in milk have cosmetic effects, making the skin smooth and plump. Milk not only provides adequate nutrition to the skin, but also contains enzymes that can reduce inflammation, swelling and soothe the skin; therefore, if the skin is red and swollen due to the sun, milk can be used to care for it. Chilled milk is better because the low temperature can shrink capillaries, reduce inflammation, relieve pain and enhance the repairing effect of milk. The specific steps can first wash the sunburned area with water, and then put a cotton pad or small towel soaked in cold milk on the red, swollen and hot places, each cold compress for a quarter to twenty minutes, should receive immediate results.