I did a search for hypnosis and I came up with a few hits. It seems that lucid dreaming and hypnosis are two different states of mind and are therefore unrelated? I really think that one can transition from one state to the other after all one of the principles to inducing a lucid dream is using suggestion (the acronym is escaping me now).

Could there be a way for lucid dreaming to help one break bad habits and form new ones. Could lucid dreaming serve as a sort of therapy for minor physical ailments and tiredness?

Just one example of trying to use lucid dreaming to fix something:

I have this big eye floater in my left eye. Floaters if you don't know are these little gel like things that float around in your eye. They usually are more common in near-sighted people. They aren't harmful as much as they are an annoying nuisance. Anyhow, a couple of my dreams has included these floaters. This may sound silly, but there was these life-sized floaters and I had some kind of tool that I was poking them with and deflating them. And I knew they were floaters in my dream. When I woke up, they were still there...lol. So it didn't work, but could lucid dreaming possibly positively influence migraine headaches and back pain, etc?