Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Q: Question: Does warm sitz bath reduce symptoms in posthaemorrhoidectomy period : a randomized , controlled study?
Answer: This study shows that sitz bath does not offer pain relief, wound healing or reduction in consumption of analgesics and thus there is no evidence to prescribe sitz bath in the post-haemorrhoidectomy period.
A:
no