It may take time before your thyroid function becomes normal after you begin taking thyroid hormone replacement. You will need to have blood tests until your thyroid levels are normal.
If you are considering taking iodine-containing supplements, such as kelp, talk to your doctor before doing so.
Hypothyroidism. EBSCO DynaMed website. Available at: https://dynamed.ebscohost.com/about/about-us. Updated November 12, 2013. Accessed November 25, 2013.
Hypothyroidism. National Endocrine and Metabolic Diseases Information Service website. Available at:
http://endocrine.niddk.nih.gov/pubs/Hypothyroidism. Updated March 13, 2013. Accessed November 25, 2013.