For the first time in my 53 years, I believe I have broken out in hives. This began this past Saturday. Both of the tops of my feet were itching badly. The next thing I know, I have about 8 of my right side broken out in welts. Again, itching badly. By today, this has spread to my forearms, wrists, and hands; especially the palms. Anti itch cream seems to help along with Benadryl. My skin feels very tight in these areas and I have raised welts throughout. They seem to disappear and then appear in other areas. Any thoughts?