The use of phototherapy for papular urticaria is effective, but it is generally used for persistent lesions, which are mainly treated with other medications. Papular urticaria, also known as acute simple itchy rash, is associated with insect bites, intestinal parasites, and certain foods, and mostly involves children and adolescents. Pemphigus urticaria can be treated with phototherapy, such as UVB phototherapy or PUVA therapy, which is mainly suitable for persistent lesions. For milder symptoms, topical medications such as glucocorticoid creams such as hydrocortisone cream and dexamethasone cream, calcium-modulated phosphatase inhibitors such as tacrolimus and pimecrolimus, and exfoliators such as retinoic acid cream can be used. You can also take antihistamines such as oral loratadine to stop itching, and oral glucocorticoid cream if necessary. It is recommended to seek timely medical treatment, according to the doctor’s instructions to use drugs.