So, suddenly out of the blue I'm developing a rash on the underside of my wrist whenever I wear leather around my wrist. The effected area becomes itchy, red, and even slightly swollen by day's end. This is happening with my favorite straps - greg, vintager, strap culture, etc. And these are straps that I've worn for a long time with no problems in the past. I'm puzzled. Has anyone ever heard of anything like this? Before I throw a collection of nice straps away, I've got to at least try cleaning them.... They don't look dirty, but what the hell. So what's a good leather cleaner to try out? Any other ideas? Thanks!