This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fungal infections, Scabies, Pediculosis, Subject name: Dental
Potassium iodide is useful in the treatment of - 
Select and explain. 
A. sporotrichosis, B. Impetigo, C. Viral was, D. Dermatitis herpetiformis
A: sporotrichosis
Answer: A: sporotrichosis 
Explanation: 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