Can post op enlargement of chest (possibly due to cannabis) be reversed by discontinuation? (Photo)

Its 5 weeks since my Excision only surgery, although doctor did do some light lipo around nipple area. I was given a pressure dressing and instructed to wear it for one week, initialy having pleasing results. I have become less optimistic however as my chest has grown in size over the past two weeks and I'm wondering whether this is due to cannabis use? (1-2 times a week) . I'm more than happy to stop the smoking but now wonder if its to late to reverse the possible damage that has been done?