Primary focal hyperhidrosis does not cause illness. Basically, you just sweat excessively. Although it is a medical condition, it's not a sign of disease or a drug interaction. People who have it are otherwise healthy. The symptoms of primary focal hyperhidrosis are fairly specific.
Potassium iodide is a component in the electrolyte of dye sensitized solar cells (DSSC) along with iodine. Potassium iodine finds its most important applications in organic synthesis mainly in the preparation of aryl iodides in the Sandmeyer reaction, starting from aryl amines.
Iodide is the ion state of iodine, occurring when iodine bonds with another element, such as potassium. In this form,iodine can be ingested or applied topically (such as with povidone iodine, an iodide). Dietary iodine also occurs naturally as an iodide, such as potassium iodide or sodium iodide (the kind typically placed into salt) So iodine and iodide are simply different expressions of the same element.