I would just use it while at work....so I would wear it 6-8 hours or so. I would advise to take it off and check on things every 2 hours or so. I didn't think the blister was really that big per se, but like blisters do, it started peeling making things kinda uncomfortable for a few days. As a result, I just don't use it like I did...and when I do, I check things frequently and use a much lighter tension.