I've been on fentanyl transdermal system for several years and have always had trouble making them stick is there a strong oral med that I could just switch to or do I have to slowly come off the patch first and if I do have to slowly stop the patch,what do I do for the pain and withdrawel.I'm also on percocet for breakthrough pain,which I have no problems with.Have had chronic pain since near fatel car accident in 99.Need the med but not this patch!