求医学英文翻译！

Objective: To study an effective postoperative treatment for anorectal diseases to relieve pain, edema and promote healing of the wounds.
Methods: 516 anorectal postoperative patients were randomized into two arms as treatment arm and the controlled one. Cases in the treatment arm were directly sprayed anti-bacterial aerosol after cleaning their wounds, while those in the controlled arm were given conventional dressing. Both arms were treated exposed under He-Ne laser irradiation.
Results: Through observation and comparision between such two arms in terms of wound pain, edema symptom of the wound edge and postoperative healing time for the wounds, it was found that the treatment arm could relieve wound pain and edema of the wound edge, and showed better effect over the controlled arm as its counterpart with statistics difference as P(P斜体表示)<0.05.
Conclusion: Anti-bacterial aerosol spraying combined with He-Ne laser show satisfactory effect to promote wound healing with reliability, safety and convenience.

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