ulcerative colitis
"I was given Remicade while in the hospital. They premedicated me with Tylenol and Benadryl. After the Benadryl wore off, I broke out with severe hives from head to toe. I took Benadryl and then Zyrtec for ten days and neither helped the hives much. Thankfully, they finally went away. Horrible experience. I looked like I had a plague."