This product did not work well for me, and it’s pretty expensive at over $1.00 per protector.
The Band-Aid Blister Block is meant to be worn on your heel before you get a blister, to prevent you from getting one. It is an oval pad, about 1 3/4 x 2 3/4 inches, and is Caucasian flesh colored. The pad is slightly puffy; it feels a bit gel-like. A box of four sells for almost $6.00.
Putting it on is a little more complicated than an ordinary bandaid. First you remove a paper backing from the side that will be away from your skin. I’m not sure what the purpose of this paper is, except maybe to keep the puffy pad from drying out or something. Then you remove half of the paper from the sticky side and place the pad where you want it on your heel, while holding on to the tab from the other half of the backing paper. Once the pad is placed, pull off the other piece of backing.
Then you are supposed to smooth the pad so that the edges are not wrinkled. I found that this was impossible on my heels, which are very narrow (5A). Perhaps this would work better on a more average size foot. Finally, you are to hold your hand tightly over the whole pad for a full minute to heat the adhesive slightly for a better seal.
The pad is supposed to be waterproof if it is applied properly. They claim that it will stay on for several days.
I found the pad to be just puffy enough to be uncomfortable inside my shoes. Nevertheless, I gave it a try at the beginning of a long hike, because sometimes I do have trouble with heel blisters. But within a few miles the whole pad had rolled up and turned into a mess. Perhaps this has to do with my narrow heels, perhaps they are not meant to be worn for more than everyday office/ home/ shopping walking. However, after only 24 hours of home wear, the pad fell off.
With only one skin color available it seems that there would be a lot of people who would not want to use this product with any kind of shoe with an open back. And if you want blister protection in shoes with an enclosed heel, try a piece of duct tape. If you aren’t allergic to the adhesive the tape can be slit at the edges so that it laps and molds right around your heel, and it’s very flat and comfortable. Cheap too!
The package says that if you are diabetic or have poor circulation that you should not use this product! Also, don’t place it over an open wound. It is not a bandage.