Treatment of burns depends upon the depth of injury from a burn. For these kind of burns; you can apply antibiotic cream such as silver sulfadiazine (Silvadene).It will prevent infection and help in fast healing.
If the blister breaks, quickly rinse the area and apply an antiseptic such as neosporin. It is not recommended to break a blister because it may often lead to infection.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.