I would be cautious of taking any sedatives (benzos, z-drugs like ambien) if one has a history of alcohol addiction. They are all cross addictive and cross tolerance develops, so I think the physical addiction can get triggered very easily. I would say just be very mindful that there is a risk, and make sure that any doctor you are working with knows that you have addiction issues, particularly with alcohol.
I think there is a more general issue with any psychoactive drugs. One may be able to take a substance that is not a DOC and has no physical link to addiction, yet just being in that "party space" could be very dangerous. That's a decision you have to make for yourself, I guess.