It seems that you are having bullous impetigo
It is a bacterial infection caused by either staphylococci or streptococci.
Blood testing may be done to rule out DM,HIV or anaemia or other internal disease.
Take a short course of antibiotics with anti inflammatory drugs.
Apply antibacterial cream.Consult dermatologist
for perfect diagnosis. Other bullous dermatoses
may be ruled out by thorough clinical examination or skin biopsy
I hope you got my answer.
Wishing you early recovery.
Dr. Ilyas patel MD