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
The feature that distinguishes herpes zoster from other 
vesiculo butlous eruptions is 
Select and explain. 
A. Unilateral occurrence, B. Severe burning pain, C. Prominent crusting vesicles, D. Sub epidermal bulious formation
A: Unilateral occurrence
Answer: A: Unilateral occurrence 
Explanation: None