most of those who have had swelling do get followed up on and the swelling usually passes in a short time with continued supplementation. some require higher doses or some other adjustment, but i dont recall but one or two people who just threw up their hands and said forget it with Iodine due to reactions or just plain fear or both!
as best i can tell, everyone who has read up on it and hung in there after deciding to supplement in earnest no matter how rough it seemed has been glad they did. many are amazed and ecstatic about what they have gained from it.