The iodine alergy would be the spontaneous reaction to iodine on the skin or iodine injected in the contrast dye for taking better X-rays. Such exposure may cause spontaneous anaphylactic shock in the persons who are alergic in general.

The patient or the sufferer may exhibit highly troublesome breathing besides his tongue or throat swollen. However, for averting such histamine reactions, the treatment with the epinephrine injection is usually done.

The genuine iodine allergy is anyway the most exclusive and seldom noticed reactions. The persons have been reported exhibiting nausea, flushing, fever, or some serious breathing problems because of the iodine sensitivity. If anybody is allergic to shellfish or fish, he may feel that he may have the iodine allergy, which is incorrect, as both these fishes are rich source of iodine but sometimes those allergic are not responding to the iodine in the fish.