Review on Instant Cooling & Soothing Relief: ClearComfort Medagel Blister Prevention Hydrogel Patches For Heel & Foot Protection - 14 Mixed Size Patches by Robert Hayes

these are NOT for a humid and/or sweaty situation - like an outdoor day where you are hoping to avoid blisters. they will come loose if they get sweaty and then they aren't helpful at all. they are great for an evening out where you will be inside most of the time. i also found them to be great on long travel days when i was in airports and planes only. i do think the semi-circle and the square are really also the most effective. the little strips are OK but are pretty limited on space protected. these are NOT for after a blister has already rubbed either - i do not recommend using them after the fact - maybe once you realize there might be a problem area slap one on, or when you are getting ready. but if the blister has already broken the skin, use a bandaide or blister case over these as this is really more like a piece of padded tape. these can definitely be very beneficial - just make sure you are using them correctly and have a few extra on hand in the event one does rub off or get out of whack.