<prompt> Potassium iodide is useful in the treatment of -sporotrichosisImpetigoViral wasDermatitis herpetiformis  <response>: Sporotrichosis is a fungal infection that is caused by Sporothrix schenckii . Drug of choice for lymphocutaneous sporotrichosis is potassium iodide saturated solution Iadvl textbook of dermatology page 306 