When I first started having numbness in my thigh and hips (and later on, legs) I couldnt wear denim.
I still cant wear certain types of denim. Levi's and Lee jeans bother the heck out of me. I found some really nice jeans at KMart last year that I wear all the time now. Not sure of the brand, but they're elastic waisted and dont drive me banannas.
I used to like to wear velvet button up blouses, but discovered around Xmas that my skin doesnt like that any more.
Also, wool used to bother me, I crochet and knit, and it used to be that I couldnt stand touching wool. Now, depending on the brand of yarn, I can touch wool and it doesnt itch me any more. (weird!) I've got some alpaca wool now that I'm knitting a scarf with, and I've actually been able to wear another scarf that's 50/50 wool and acrylic.