I Have Used DMSO For Extremely Sore Elbow Pain After

I have used DMSO for extremely sore elbow pain after weight lifting. Worked unbelievably well. I have also used it for my arthritic knee and that worked well. I would like to know if it can be used for toenail fungus. I am seventy years old in good health and take no meds except for etodolac for my arthritis. Thank you.
Steve