I have had almost 30 MRI scans. I have liver adenomas, pituitary., ect. I was scanned yest, now swollen eyes and itchy, mild rash.? Gado?

Possibly. This could be allergic reaction to the contrast or something else entirely. Try using some Benadryl (diphenhydramine) and if symptoms worsen call your doctor. If it is from the contrast, then your symptoms will recur after your next mri.