I walk a lot, both the treadmill and outside. Sometimes I even run. I often have places where my shoes rub on my feet, not enough for a blister,still annoying. I now use Dr. Scholl's Moleskin. It can be cut to any size I want and is very sticky so it stays in place and protects that raw spot so
that it doesn't become worse. I have a spot just under my big toenail on the left foot and the top of my big toe on the right. If I had a cut or blister it might hurt to take it off but I've never had a problem. And by using it I prevent blisters and rawness.