I have mad sensitive skin, so I can relate. I started getting this weird rash on my arms and torso. Could not figure it out. Turned out that the fabric softener I'd been using for years had changed their formula. Switched to the "free and clear" version and the rash was gone. I have a similar issue with lotions. No dye and no fragrance type are all I use, but I'll sometimes develop a reaction over time. It's worth looking into.