Suggest Treatment For Blisters On Vagina After Using Hair Removal Cream

I am 50 yrs.old female. I recently used nair to remove hair around the bikini area. Some nair got on my vagina and I have a few blisters. They are not draining but are sensitive. I have been keeping the area clean and put some vasaline on the blisters. How should I treat this and how long will I have these blisters?