Just an inquire, has anyone ever had their allergies tested? After the nurse poked me about 75 times. The hiistamin did not work. They had to take blood and sent it to the mayo clinic to test and see what I am allergic to. I was just wonderen if any one else has not had a reaction to histamine. I think histamine plays a major part in inflammation, people who have fibro often have an inflammation in their body it can be everywhere.