It’s the end of the year again, no matter where you are, you will bring your children back to your parents’ home to spend the New Year with them. However, every year after the Spring Festival there are many children come to the dermatology department to see a doctor, some parents say that every time their children go back to the countryside will grow all over the bag, itchy and intolerable. 7-year-old Xiaoming since childhood, the skin is particularly sensitive, mosquito bites will be swollen a large block, every summer legs are full of new and old rashes, with the plum deer like, and sometimes there will be bright blisters, scratched and infected for a long time can not be healed. Especially can not go back home to the countryside, go back every Spring Festival is a bag, see the child pain, parents and grandparents heartbreaking. What is this all about? This is papular urticaria, a very common allergic dermatosis, prevalent in both lower limbs and waist, manifested as scattered, slightly hard nature, the top of the small blisters of fusiform papules. Surrounded by a red halo, the itching is intense and can be caused by repeated scratching, such as pustulosis. Most episodes are allergic reactions caused by the bites of mosquitoes, bedbugs, fleas, lice, mites and midges. Insects suck blood by piercing the skin through their mouthparts, and their saliva and some of their mouthparts remain in the skin are the cause of the disease. Therefore, the best prevention is to prevent mosquito bites, once it happens timely use of topical hormone ointment can relieve the allergic reaction to reduce itching, and in severe cases you can take oral antihistamines. Going home this year, I hope your child can have a happy year.