Blisters caused by cactus can be relieved by physical therapy, medication and home care. 1. Physical therapy: After being swollen by cactus, patients may have localized blisters, at this time, you can promote the contraction of capillaries through local cold compresses to reduce the amount of subcutaneous hemorrhage of blood vessels, and after 48 hours of hot compresses to promote localized blood circulation, which will help the blisters, swelling and pain phenomenon of the decline. 2. medication: after being cactus blisters, in order to prevent the phenomenon of infection, can be through the iodine povidone for local application, if necessary, oral amoxicillin, cephalosporin and other drugs anti-infection treatment. 3. Home care: after being cactus blisters, you should avoid letting the wound area stained with water, at the same time to do a good job of local cleaning, do not appear infected. Diet should also be light, do not eat spicy food. It is recommended that after the above situation, patients should be standardized under the guidance of a professional physician, do not blindly use drugs.