Should i need to stop smoking for my illness?

Hi, Iam 25 years old undergone a surgery of fissure in ano in last december 2009. It wasnt healed, now i had completely stoped any kind of spicy foods and meats. Although iam taking adequate medicines i could not able to overcome it. I do not smoke often but rarely like once in a day. Should i need to stop smoking completely to heal the wound. If yes how to reduce my Tension that occurs due to financial problems.