Right forum? I've been an off and on runner for most of my adult life. Did two marathons in my late 20s early 30s, got fat/thin/fat/thin/fat/thin/fat/thin/fat/thin/fat/ back to thin (6'0,190, goal is low 180s) through my mid 30s until now and have done it all through running and the stoppage there of. Never before have I had as much nail/toe damage as I've got now, and ONLY on my right foot. I have made only two changes to my running this go around: 1. switched from wicking socks to regular Cotton socks as the former gives me blisters and 2. I do most of my running on a treadmill. It's possible the unchanging treadmill pace for 25-30 miles per week is the root issue. Anyhow, my shoe type , size, pacing, etc are all identical to how I've always done things. So. How do I prevent future damage and treat what I have now. Just wear a lot of Band-Aids around my toes?