Papular urticaria is usually due to a delayed allergic reaction caused by insect bites, also known as insect bite dermatitis. Papular urticaria occurs on the dorsal side of the body, the outer side of the upper limbs, and the anterior side of the lower limbs, with clustered or scattered red papules visible on the skin. The patient’s lesions appear as mung bean to peanut-sized, slightly fusiform, red, windswept lesions that are skin-colored or light red or light brown. In some cases, the rash is a hard, corn-grain-sized papule, which swells in the shape of an eruption after scratching. Pimple urticaria, mainly relying on drugs for treatment, you can follow the doctor’s instructions in the lesions of topical glycerine lotion, loratadine tablets and other drugs for treatment, and at the same time to avoid scratching the lesions, so as not to lead to secondary infection. In daily life, patients should pay attention to indoor cleanliness, and do a good job of mosquito protection. Pemphigus urticaria usually improves quickly after treatment, if the patient develops severe or persistent discomfort, it is recommended to go to the hospital for treatment in a timely manner.