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: Pathology
Corticosteroids are contraindicated in all of the following except: 
Select and explain. 
A. Herpes zoster., B. Varicella., C. Pemphigus., D. Herpes simplex.
C: Pemphigus.
Answer: C: Pemphigus. 
Explanation: None