YOU CAN PURCHASE BETADINE SOLUTION (IODINE)AT ANY DRUG STORE AND APPLY IT UNDILUTED TO THE AFFECTED AREAS IF IT CAN BE ASSUMED A DERAMAL INFECTION IS OCCURRING. USE NEWSPRINT FOR SUBSTRATE FOR A WHILE, AS IT'S ASEPTIC WHEN DRY. DON'T LET THE ANIMAL RESIDE IN A WATER BOWL. I PRESUME THERE'S NO SIGN OF MITES WHO MIGHT BE WOUNDING THE SKIN ALLOWING BACTERIA TO INVADE. SWAB THE BETADINE ON WITH A COTTON BALL OR SIMILER, USING GLOVES TO AVOID DYING YOUR FINGERS RED. BE AWARE THAT ON OCCASION BLISTERING OF THE SKIN IS ONLY THE OUTWARD PROJECTION OF A SYSTEMIC INFECTION. IN SUCH A CASE ANTIBIOTICS ARE REQUIRED... THAT SAID, YOUR SNAKE'S CONDITION DOESN'T LOOK LIKE CLASSIC BLISTERS AS SEEN ON RETICS, BURMS, ETC AS A RESULT OF DIRTY SUBSTRATE AND INADEQUATE VENTILATION. AFTER A FEW DAYS OF BETADINE YOU COULD TRY APPLYING POLYSPORIN OR SIMILER ANTIBIOTIC OINTMENT THAT WILL ALSO PROTECT NEW SKIN. LET US KNOW HOW THINGS PROGRESS.