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: Surgery
Local anaeshthetics cannot be used at the site ofinfection because it causes - 
Select and explain. 
A. Spread of infection, B. Lowered efficiency, C. Both, D. None
C: Both
Answer: C: Both 
Explanation: Ans. is 'c' i.e., Both Local infiltration is contraindicated near infection because it not only spreads the infection but is also ineffective, as the acidity produced by infection blocks the action of the drugs.