Solar dermatitis, or solar dermatitis, also known as sunburn or sunspot, is an acute inflammatory reaction of normal skin after exposure to sunlight, manifested by erythema, edema, blisters and hyperpigmentation, desquamation. This disease is common in late spring and early summer, and is prevalent in children, women, skiers and water workers. The intensity of the reaction is related to the intensity of the light, exposure time, individual skin color, body quality, race and so on. According to the local skin erythema, edema or blisters after sun exposure, after the healing of hyperpigmentation spots, conscious burning, pain, it is generally not difficult to diagnose. Mild cases of localized external use of the Samsonite cream, slightly heavier cases of line cold compresses, glucocorticoid cream. “Sunshine, make up calcium”, parents know that the sun is good for the baby, but the summer sun is strong, the baby sun should also have degree. Experts pointed out that if the child in the sunshine activities for a while, the exposed parts of the skin appeared a large swath of red “spot”, then it is likely to be out of the sun dermatitis. Therefore, in the summer with the baby in outdoor sports, must pay attention to never let the sun directly hit the baby’s skin. In general, you can give the baby to wear a sun hat or umbrella, you can also choose some children’s special sunscreen, but do not give the baby with adult sunscreen, so as not to give the child’s skin caused by the burden. If you want to apply sunscreen to your child, it is better to apply it half an hour in advance. And when using sunscreen on your baby, use it on dry skin so that it doesn’t come off with water or sweat or become ineffective. Experts especially emphasize that babies can only do “sunbathing” after 3-4 weeks of birth. Because the newborn’s skin tissue development is not perfect, the protective function is not complete, too much sun exposure, easy to hurt the baby’s skin, these injuries will leave hyperpigmentation, some people may also lead to adult skin cancer. In the sunshine time, then you can choose 6 am -7 am or 5 pm -6 pm. And the time should be short at first, and then gradually increase the time.