blisters on the butt that keep reapearing after healing each one about quarter size

I have used cream for the itching and peroxide to help dry the blisters but once healed in one spot another one appears and only on the one cheeck on the butt. No where else on the body.What could it be and how can I get rid of it hope u have a answer for me

Can anyone please help please I am at my worst end about this rash that keep arresting on my butt cheek

DETOX is the solution. Try to build up your immunity.