In March, with the warm spring breeze and warm weather, some tiny insects such as mites and midges start to multiply and move around. These insects are often attached to clothing and grass, some specific allergic people such as children are bitten, the skin appears fusiform red papules, red papules can often be seen on small blisters or bite marks, this skin disease we call “papular urticaria”, commonly known as “insect bite dermatitis This skin disease is called “papular urticaria”, commonly known as “insect bite dermatitis. Due to the intense itching, some children cannot resist scratching and breaking, which leads to secondary infection, fever and swollen lymph nodes, endangering the patient’s health. Every year in March and April, nearly half of the pediatric patients in the dermatology clinic are suffering from this disease. How can parents determine “papular urticaria”? Papular urticaria occurs on the extremities and waist, and is characterized by red papules in the shape of a fusiform rash the size of a soybean to a bean. If the papules occur on the palms of the hands and soles of the feet, they appear as bright blisters. Papular urticaria rarely occurs on the face. However, a few infants and young children can also occur intensively on the scalp, manifesting as a red papule of rice grains. How to prevent “papular urticaria”? 1, usually wash and dry clothes and blankets. For the clothes that have not been worn for a long time, wash and dry them before putting them on your child. 2, avoid walking or squatting on wet grass. Such as field trips, pay attention to wrap the trouser legs and sleeves to avoid being bitten by insect invasion. 3, pets are also easy to breed insects on their bodies, families with pets, to often give pets bath disinfection. 4, after being bitten by insects, do not scratch to avoid bacterial infection. The less serious ones can use topical Furamyl lotion and dermaplanin type of drugs on their own. The rash is more or co-infected, you must go to the hospital. 5, wearing insect repellent balm is an effective way to prevent papular urticaria.