Papular urticaria, also known as insect bite dermatitis, is an inflammatory skin disease caused by insect bites on human skin, with mites being the most common. It stings, burns and itches, so the child will scratch and scab after scratching, but the persistence of itching causes the child to scratch repeatedly, and the rash will not heal for a long time, and in serious cases, secondary infections can cause impetigo, or even systemic infections, leading to sepsis. Therefore, it must be taken seriously. Because it occurs from spring to autumn, when children have fewer clothes and inevitably have insect bites, the disease recurs, and it is painful for parents to see their children suffering, and many parents are eager for teachers to give detailed answers when they visit the clinic, but sometimes there are many outpatients, so I cannot tell them in detail, so I write down the precautions and treatment methods, hoping they can help. It is okay to suffer from papular urticaria because the disease will slowly improve with age, but it cannot be cured for the time being, but the main thing is to prevent scratching, and the recovery time will be significantly shorter if you don’t scratch. The reason why children scratch is because it is itchy, so when the onset can eat some paracetamol and so on, the external use of some compound camphor cream will be better. In addition, you need to pay attention to prevention as follows: 1, when spring comes, pay attention to environmental health, eliminate pests; 2, keep clean and hygienic, in addition to washing clothes, bedding, but also often in the sun; 3, avoid eating fishy and spicy food, eat more fruits and vegetables; 4, pay attention to the cleaning of the dead corner of the house, is the place where mites reside; 5, prevent scratching, not scratching then the recovery time will be significantly shorter, children scratching because itchy, so you can take some paracetamol or something topical. So when the onset can eat some paracetamol or something to reduce itching.