I use Iso for years with no ill effects, it evaporates very quickly. Now that I have found "Pipe Masters Clean & Cure" I am liking it as a replacement for the day to day cleaning or refreshining. Still use Iso for the initial cleaning of Estates though.
Ya mate, PA is one of my main baccys. Wife doesn't seem to mind, I smoke in the house. Sometimes I will add about 1/3 Butternut Burley to it for that extra "sweet" smell.
Glad your doing well mate. I had em twice. Once on each side. Feels akin to Child Labour. Mine passed on their own but the one time, it took 3 weeks. Not a good time at all. Had xrays done and the Doc said there were 7 grey areas in the affected Kidney.