When I was a kid, we were playing at a friend's house. I fell and scraped up my knee pretty badly. Dirt and rocks were in the wound. My friend's mom was a nurse, so she got out her medical kit. She did her best to pick out what she could and then showed me her bottle of iodine. Iodine is a strong anti-microbial. Highly effective for cleaning wounds. But, lik ... Show More