If there are no conditions, use a sterile disposable syringe needle to pick out the blisters.
Keep the blister epidermis and disinfect the wound with iodophor;
I wish you a speedy recovery!
(Dr. Liu Bin from Xi Central Hospital solemnly reminds me that because I can't see the patient face to face, I can't fully understand the condition. The above suggestions are for reference only. Please go to the hospital for specific diagnosis and treatment under the guidance of a doctor! )