If you should ever happen to stumble upon some radioactivity, and become ill, you need to cleanse your thyroid asap.
Keep these items handy.
Potassium iodide is a nonradioactive form of iodine. Because iodine is essential for proper thyroid function, the thyroid becomes a "destination" for iodine in the body. If you have internal contamination with radioactive iodine (radioiodine), your thyroid will absorb radioiodine just as it would other forms of iodine. Treatment with potassium iodide may fill "vacancies" in the thyroid and prevent absorption of radioiodine. The radioiodine is eventually cleared from the body in urine.
Prussian blue, a type of dye, binds to particles of radioactive elements known as cesium and thallium. The radioactive particles are then excreted in feces. This treatment speeds up the elimination of the radioactive particles and reduces the amount of radiation cells may absorb.
~definitions of what they do found at the Mayo Clinic
Of course only a doctor can tell you if you have the correct radiation poisoning for these treatment to be helpful.
clicking on links will take you to places that these items can be purchased