Thank you. I am just trying to hold on til my dermatologist's appointment next week. I have had to wait and beg for this appointment and, in the interim, the rash is "spreading". Now on back of knees and in the groin. I have tried all kinds of topical cortisone creams and antihistamines but I also simply do not "feel well". Nothing I can put my finger on just very tired, achy joints and this all-consuming itching. I just hope when I do get to the dermatologist there is at least something that will take the itching away while we determine what this is.
It can be due to hives, pityriasis rosea or due to shingles especially atypical. In this there is pain and sensitivity in a particular dermatome especially under the armpits and on the trunk and there is no appearance of any rash or blisters.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.