After a CT scan with Iodine injection the skin throughout the whole body is red warm and itchy What should you do about it?

Benadryl, benadryl, benadryl! My sister is a pharmacist, and a topical ointment like Gold Bond won't do. You must take something internal for the puffy red, warm and itchy skin. Be sure, of course, to drink lots of water.

After having a reaction to the contrast Iodine and with her expertise, I went to the Sam's Club pharmacy all swollen, red and looking like I had spent hours in the sun. Their pharmacist so bad for me, he gave the pills free! He suggested starting with 2 right then, to be followed with a pill every 6 hours after.