Blisters on back of ankles- from flats!? help me :(?

to prevent blisters either cut a piece of mole skin, its a fuzzy material with a sticky backing you can find in walmart or wherever in the medicine aisle, and put it on the inside of the shoe where it rubs. or you can get a no rub stick from Bandaid, its blue and has a clear stick inside, it looks like a mini deodorant and rub that over your skin where it gets irritated it really works