I am very active, swim, play tennis, sweat a lot, which seems to aggravate the redness, itching and rashes from the patch. (fortunately my chronic back pain doesn't preclude activity) I'm trying everything from temporary removal (during active times to keep it dryer) to moving the patch locations. I use waterproof tape, etc. I really want to keep using this patch, its the only thing that has worked for 6 years.