Our daughter gets purpleish spots on her legs, arms and has been to several dermatologists who hav NO clue. She is 56 yrs old. NO it is not mosquitoes or bedbugs. Breakouts stays several weeks, heal only to keep getting new outbreaks even on the arms, shoulders. She even had biopsies done....guessing maybe its bedbugs. It is NOT...husband sleeps in same bed..no purple marks on him. Somebody somewhere has to have an answer. She is on thyroid medication but doesnt appear to be from any allergies. She does have 4 cats. Afraid they could begin to appear on her face & chest....its embarrassing because it looks like she is covered w mosquito flat bites.HELP!  She is exhausted going to different drs. Its definitely not Purpura.
Hi you didn't mention since how long she has been suffering from this problem. Anyway it seems to be some allergic reaction either due to Chat Doctor.