I have rash on both wrists/hands/upper arms/ neck and shoulders with a few small red bite marks. My wrists are solid red. I treated the RV with flea powder and flea bug bomb since I am near dog walking area and treated yard. I don t have pets but have pet owner freinds who visit but they dont bring pets in my RV. I ve been doing natural cremes and benedryl creme and tablets. This has been going on several weeks and is now getting progressively worse. Last year I developed nickel poisening from my gold jewelry and when I saw my doctor in January she gave me prescription Triamcinolone creme which worked well and rash and symptoms went away within week. I tried the creme on this new rash to no avail.