Itchy back at night, generally due to scabies, urticaria, papular urticaria and other diseases, it is recommended that patients follow the doctor’s instructions for personal care and medication, the specific application of creams need to follow the doctor’s instructions. 1. Scabies: generally caused by the bite of scabies, it is recommended that patients will be sheets and covers for ultraviolet poisoning, while following the doctor’s instructions for external sulfur cream and other drugs. 2. Urticaria: mainly due to food allergies, infections, drugs and other factors leading to skin mucosal reactive vasodilatation and increased permeability caused by small vessels, it is recommended that the patient follow the doctor’s instructions to take loratadine, ibastine and other drugs, and at the same time can be used topically dinexed cream, fluticasone propionate cream and so on. 3. papular urticaria: mainly due to mosquito bites at night, it is recommended that patients follow the doctor’s instructions for local application of glycerine lotion and other drugs to stop itching, and at the same time can be used externally, such as mometasone cream. All of the above medication should be used under the guidance of a doctor, avoid self-medication. There may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.