I think that the best cleaning solution I have found to date is a mixture of powerdered pumice stone and baby oil. If you are cleaning the strings, bridge, or fingerboard rubbing alcohol works fine, just MAKE SURE you DON'T get it on the finish of the instrument, it will take it right off. But if you need to clean rosin off the instrument powdered pumice stone and baby oil works great. The oil softens it up, the pumice works as a fine cleaner. You MUST order the pumice stone from a violin dealer like internationalviolin.com because it has to be very finely ground. Hope this helps
