What Could Recurring Blisters On Toes And Feet Suggest?

Hi, may I answer your health queries right now ? Please type your query here...Hi, I have been living in Mexico for about a month now. Ever since I arrived I have gotten burning blisters on my toes, feet, and legs everynow and then on my arms have been to a dr twice here and he prescribed topical creams which make the burning stop but I keep getting new ones What do you think?