Arm burn blisters should first be protected from trauma and also from infection. If the blister is relatively large and the blister fluid is relatively large, you can use the needle of a sterile syringe to puncture and aspirate the blister fluid as much as possible, while not damaging the skin of the blister. Before disposing of the puncture, you can use iodophor for disinfection, and after the puncture, you can apply moist burn cream or Jingwanhong ointment or comfrey oil locally, and then bandage the area, which generally does not leave scars after treatment. At the same time, the local area of the burns should not be exposed to water as much as possible to ensure local dryness and ventilation.