Iodine allergy, a rare form of allergy, usually shows up when a radiocontrast media is injected to take X-rays. Certain people with iodine allergy may also be allergic to fish or shellfish. The link between iodine allergy and shellfish allergy is not clear, but it exists. If you suspect you have iodine allergy, the best step you can take is to get yourself tested.
People with iodine allergy should be careful with the following:
- X-ray radiocontrast material
- Topical solutions containing iodine
- Shellfish and fish
A person with iodine allergy may also have shellfish allergy and vice-versa. But, this is not the case always. In most cases, iodine allergic individuals are able to consume iodized salt without any problem.
Are You Really Having Iodine Allergy:
Just because you have an allergic reaction to X-ray contrast material does not mean you have iodine allergy. You might be allergic to the other dyes or materials used in the radiocontrast material. Similarly an allergic reaction to shellfish is mostly due to the protein present in the shellfish.
Iodine Allergy Symptoms:
Iodine allergy symptoms include rashes, itchiness of the skin, watery and itchy eyes, abdominal cramps, nausea, diarrhea etc.
In severe cases the above symptoms can progress to a life threatening anaphylactic reaction which involves dizziness, low-blood pressure and breathing difficulty. An epinephrine should be injected immediately to stop the anaphylactic reaction.
Tips to Manage Iodine Allergy:
- Instead of guessing if you have iodine allergy, it is best to get yourself tested.
- Iodine allergies can be determined by conducting skin test or blood test. Consult your allergist for the tests
- If you have iodine allergy, always inform the doctor before he/she administers the radiocontrast material before x-rays or when topical iodine is used
- Always carry a self-injectable epinephrine
- Speak to your allergist about avoiding the foods or materials containing iodine
Treatments for Iodine Allergy
Skin reactions such as itching, hives and rashes can be treated with oral or topical corticosteroids, and oral antihistamines. Use Benadryl to treat iodine allergy symptoms. For skin inflammation and itching, use a topical cortisone cream or ask your doctor to prescribe a corticosteroid.
For lung congestion, cough and to widen the airways, your doctor can prescribe a bronchodilator. So, if iodine allergy causes breathing difficulties, contact your physician.
If you experience severe anaphylactic symptoms, call 911 for emergency assistance. Keep a shot of epinephrine handy for such dire situations.
Inform your doctor and pharmacist about your iodine allergy. Do not use iodine to treat cuts or other wounds. Check all medicines to confirm if they have iodine as an ingredient.
