I have several questions, which may or may not be related concerning my skin. First off, my chest breaks out a lot for no reason, it itches and turns bright red randomly. Second, after I take a shower, my legs have bright purple blotches all over, but do not itch or hurt. I was wondering why that is? Also, I have these painless tiny bumps on my upper arms that I ve had forever, but don t go away no matter what type of soap or anything I use. My mom has these too, so I m wondering if its genetic? Lastly, every time something even lightly scratches my skin that I may not even notice, I get these raised, white lines. I am familiar with the skin condition Dermatographia, but isn t that with raised red lines? Any answers would be appreciated. Thanks!