If you have a blister on your hand from frying oil, it usually damages the skin or mucous membrane tissue, and the liquid that exudes from the burn can cause local swelling of the tissue, requiring emergency treatment. 1, if the burn site has clothing, you need to cut off the surrounding clothing, do not tear to avoid damage to the trauma; 2, rinse the trauma with cold running water, or directly immerse your hand in cold water, which usually takes more than 30 minutes to maintain. You can quickly reduce the temperature of the wound and reduce the heat damage to the deep tissue; 3, if the blistered area is small and belongs to the shallow burns, you can follow the doctor’s instructions to apply scald ointment, such as erythromycin ointment, Jingwanghong ointment, etc., can relieve the pain and skin swelling brought about by burns, anti-inflammatory, anti-infective effect. If the blistered area is larger and there are obvious blisters, you need to go to the hospital. The doctor will use a sterile syringe to extract the solution inside the blister to relieve the tension of the skin to relieve the pain, then disinfect the wound and apply scald cream, and if necessary, you need to take antibiotics, such as levofloxacin tablets and azithromycin tablets, to avoid infection.