If your tremor is a "familiar" tremor, or "Essential" tremor, (not Parkinson's) it is genetically inherited and there is medication for it. The essential tremor is faint or absent when the hands are at rest and get worse when you attempt to do something with your hands. (A Parkinson's tremor is the opposite; worst at rest, better when functioning.) The medication for essential tremor is a central nervous system depressant, so any central nervous system depressant will work, including alcoholic beverages. You can also take an herbal supplement called Valerian. Avoid all caffeine, as it makes essential tremors much worse. Essential tremor is what Katharine Hepburn had, but she had it in her head, not her hands (it can occur in either location).