Okay, you need to RELAX!!

I have had the CT with no contrast. I have a shrimp allergy and have had contrast with Benadryl beforehand. HOWEVER, if you have a big allergy to iodine and need Pred and Benadryl, go ahead and have the CT without contrast!!! They can see the little thymus just fine without it.

Why they like to have contrast is just in case there is a thymoma. They can see it better with the contrast. But I've known people who have had the contrast, no one saw a thymoma, they have the thymus out and there is one.

I think the most important thing is your overall health. You are having trouble with congestion, probably due to Mestinon's cholinergic properties. I don't think adding an allergy response on top of that is a very good idea (via having contrast).

Go ahead, do it without. But that's just my opinion. I have allergies and asthma and there was no way I was going to have the contrast!

Annie

Neuros can be "funny." They sometimes don't like to be "bothered" with things other than their field of expertise. They aren't allergists. That's why you need an allergist and/or a pulmonologist for times like this.