It sure is Cory!
It's strange but there doesn't seem to be a reply from me from the original question? So, I'll put in some comments for others.
Salt is a good way to stave off bacterial and fungal infections and help fish heal after injury. A betta can easily take a tablespoon per 2-3 gallons. When well, I would cut that back to one tablespoon per 5 gallons. I treat injured fish with salt, Stress-Coat (has aloe), MelaFix by Aquarium Pharmaceuticals (all natural so it can't hurt), and if there is an infection, Maracyn and MarOxy by Mardel for bacterial and fungal infections respectively. Everything is a "chemical!" The salt, Stress-Coat, and MelaFix are completely safe at the right doses. The others I mentioned can be more dangerous to sensitive or compromised fish but are necessary if the problem is severe. White splotches that are fuzzy are fungus. If they're not fuzzy, they may be columnaris which a bacterial infection. It's often unrelated to injury so I suspect the white splotches in this case were injured areas on the fish. Kind of like the goldfish at the top of
http://www.fishpondinfo.com/health5.htm