Just got home from a trip to the emergency room. Had a bladder infection took antibotics. Was having a flare from antibotics and the heat just feeling bad for about a week. Then the other day my stomach was upset drank a ensure and it went downhill from there. Bad stomach cramps, D, thought I was going to passout, and hives. Went to the emergency room doctor did not think anything of the hives benadryl took them away. But found out a little infection still left, I was dehydrated, and my potassium was low. I did figure out the hives I think I get hives from sulfur based antibotics. I read that ensure contains alot of sulfur. Does anyone else know what foods have sulfates I should worry about? I also have another question my potassium is always low. Is that common in people like us?