[afraidfortherepublic]

That is what the doctor told me (that I have an iodine allergy). Furthermore, he told me that it is not all shrimp — but the water that the shrimp was swimming in. All I know is that I break out in itchy hives if I eat shrimp (and he was right about that — depends upon where the shrimp came from, but I have no way of knowing in advance), have a contrast scan using iodine, or have batadine applied to my skin. All I know is that the reactions get worse the older I get, so I avoid all of those situations. I suppose the doctor was just being simplistic in his explanation, but no other medical professional has ever argued about it.

[armydoc]

As I said, it is a commonly held misconception, even among doctors. Here's a reference that gives a thorough explanation of the issue.

https://radiology.ucsf.edu/patient-care/patient-safety/contrast/iodine-allergy#accordion-clinical-implications

You might want to pass it along to your doctor. The practice of medicine is a lifelong learning opportunity.