Best to order online in the US, I believe (im in the UK, so not sure).
jcrows posts here, find them on google, they have the Lugols that you can use and a discount if you mention curezone in the box when ordering.
Make sure you've done plenty of reading of the R, RN and BSA posts! Its very very very important with Iodine that you have as much knowledge as possible - relevant to your condition.
I assume you know about the importance of Sea Salt , vit C and selenium (imho) too?