Yep get waterproof bandaid thingys. I got mine from Safeway, they were Bandaid brand (the big ones) and they worked really well. I recently got some from the chemist and paid almost $15 so go the Bandaid brand.

They should stop being sore after a few days but that could depend on the part of the body they're on. I had some taken off my leg which didn't hurt but the ones taken from my neck and arms did, probably due to having more movement in those areas.