I have found that if you keep the patch stored in a cool dry place, the backing comes off without any problem. If you do have some trouble with removing it though, I usually take the patch and put in between two ice cube trays for a few seconds ( approx.. 15-20 sec.) and then immediately remove the backing. I promise it works. I keep them on my window sill in the winter and in front of my air conditioner in the summer... good luck all.