large, severely itchy (feels like needles pricking), red patches that go from bright red to blood red. (bruised looking) on skin. Starts at pubic area, on inner thighs, butt crack, up side of body, arm pits and under side of arms, buttocks, starting to appear on lower back and traveling down to knee. It darkens then feel bruised. About a week later painful large blister with clear fluid appear and last for about a week, then burst and peel. Blisters only appear on dark clammy areas. And healing begins. With each episode that occurs the period between attacks shorten and problem worsens and the problem last longer. Started happening a little over a year ago. Usually I wake up and find myself a mess. But this last time I got to see the start. Started to itch our later red by morn bruised looking