Thanks for the suggestions. I'm gonna go with Spenco 2nd skin, or if I can't find it (wasn't in any drugstores), I'll go with neosporin. Haven't had a heel blister in years. I was actually breaking in a pair of boots and had duct taped both heels just in case. Foot started to sweat and duct tape came lose, didn't realize until too late. Forgot just how problematic they can be.