I have had RSD for over 4 years now & have experienced the bluish color changes as well as rashes & mottling, the severe burning & pupil changes & swelling amongst other kinds pf pain. I have not yet had any blistering or clotting, that I am aware of, but I know the coldness & sweating (like my foot is being frozen in dry ice & nothing will warm it or like it is being held on a scalding hot frying pan). For some reason, most of the color changes have stopped & I rarely see signs of them now, but the pain is never ending & because I have had to leave my specialists whom have all seen the signs listed above in the first years after my diagnosis, the new doctors are questioning my diagnosis. It is extremely frustrating. My hearts go out to you all & I thank you for having the courage to tell us your story and post pictures so we know what to look out for. I wish you all the best & hope that yours will soon get better & to you "bobinjeffmo", I pray you will get to keep your leg.