Techincally no such
You may be allergic to iodinated chemical compounds, such as radiographic dies, but you cannot be allergic to "the elemental" iodine
, or iodine as a charged particle.
Iodine is your thyroid, exist throughout your body, and you certainly can take in iodinized salt.
This should not be a problem. Talk with your primary care doctor, an endocrinologist, or an allergy specialist, if you have doubts!