I bought my mom, a french horn player, a hunting horn on eBay for $30, and it is a great model and actually plays quite well for the price. However, it definitely came from a smoking home and she hates that smell and is allergic to it as well. Any suggestions on how to get that smell out? Would a normal, thorough cleaning do the job? I've heard vinegar works for other materials, but I don't know if that would damage the horn's finish. Thank you in advance.