I have had a fairly bad rash for the past 2 months. It seems to move around.Very red , almost blistery, started on the tops of both feet and got very bad/ open wound from scratching-- it itches terribly. then moved to my inner legs just above and below the knee. it's now moved to my upper chest and neck and lower center back. The itching then soreness after scratching is miserable. went to a dermatologist and gave a Kenalog shot and said to keep using the allergy pills along with Gold Bond lotion and Cortisone 10 onintment but it does not seem to be helping. Any help would be wonderful. Thanks