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
Side effects of sclerotherapy in treatment of varicose veins are all except 
Select and explain. 
A. Skin necrosis, B. Thrombophlebitis, C. Anaesthetic complications, D. Anaphylaxis
C: Anaesthetic complications
Answer: C: Anaesthetic complications 
Explanation: Sclerotherapy does not require anaesthesia.