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Google "potassium iodide" and look through references until you find one mentioning Tahoma Clinic. Pull this one up to read Dr. Jonathan Wright's article about SSKI (saturated solution of potassium iodide).
Since it has many different uses (including one that Dr. Wright didn't mention of using 2 drops of SSKI or Lugol's solution daily to aid your stomach in producing hydrochloric acid to digest your food), I suggest that you print this article to keep on hand for ready reference. I found it to be quite useful in liquefying secretions in the lungs and head to aid in getting them out more easily.
Also, please remember to not dilute your Lugol's or SSKI in chlorinated water to avoid the chemical reaction converting your potassium iodide back into iodine!