Ok my doctor prescribed me fentanyl patches, the very first one he gave me came off, and I couldn't get it to stick again, so I threw it away and started over. I put that patch on my chest, and managed to keep it on 48 hours, it made me so sick. The third one I put it on my hip, and oh my goodness finally pain control. So here is my question. I'm almost into 48 of the 72 hours, I am a patch short (I have an appointment Monday) with this being my last patch, do you think with this being my last patch it would offer pain control until Monday?