Hello, a member of my family was sent to the hospital with a staph infection and the doctor said the entire family needs to be treated and the household needs to be treated as well. Since I play my trumpet daily I need to cleanse that as well. We are using rubbing alcohol on all hard surfaces within the house but I wasn't sure if it would mess up my horn. The finish is silver. If rubbing alcohol is not safe please suggest an alternative. Thank you.