I hear magnesium oil also has a little bit of Iodine, along with the fresh organic cranberries as suggested should help. You might want to start very small with these since you have nodules, from what Dr. Brownstein wrote you have to be careful of 'thyroid storm'. He recommended surgical removal too, but I also read you can carefully add Iodine and not have to do that.
I just want to add from all the good advice here to be careful when taking iodine, and be aware of detox symptoms. Cut back if you experience symptoms so they don't become too bad. I ignored the symptoms and it just got worse until I couldn't handle it anymore, and I'm taking a break now. Good luck.