i am looking for something for my husband's chronic pain. he has kicked the fentanyl patches, which when you see someone detox from that stuff,,,,,,well, you won't believe the agony i saw him go through for several days on end. bad stuff. my questions are, what can he use when the lights go out. i need some urgent information befor e he gets back on synthetics again from his doctors. i know he cant tolerate the pain because i've seen the effects when he is not taking anything. he can't sleep, concentrate, or focus on anything but the pain. aand he's just going to be to valuable to others to just dope up again. he's an electrical engineer, qa,aas and an inventor, scientist in solar and wisnd related projects. please help.