I have had a type of rash since april that comes and goes daily.  This is in the form of red bumps that become very itchy and stay for a short period of time and then go away.  I have been to see the doctor two times and still no diagnosis.  This rash stays on the tops of my hands and wrist with some red bumps that go up the inside of my arm but do not itch. I am at a loss for what it could be.  Cortizone cream does not help the itching.
Hello, According to me, you are most probably suffering from a condition called urticaria (hives). The main aim of treatment is to find the cause and to avoid it. Antihistamine tablets and calamine lotion are adjuvant treatment options. So, I advise you to consult your Dermatologist to help you in finding the actual cause for the rash. Hope I have answered your query. Let me know if I can assist you further.