This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
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: Ans. is 'a' i.e., Sporotrichosis o Previously oral saturated solution of KI was used for sporotrichosis but now oral itraconazole is the drug of choice for cutaneous and lymphocutaneous sporotrichosis.