There are numerous procedures described for gynaecomastia with a whole host of different scars involving liposuction, surgical excision or a combination of the two. The recovery period depends a little on what you are having done. You should be able to expect the scars to have healed within two weeks, but are likely to be a little bruised and swollen still at that point. Most people are advised to wear a compression garment of some description for a few weeks, would be exercising again within 4 weeks, but probably won't feel quite back to normal for more like 6 weeks. Gynaecomastia surgery is easy to get wrong so take your time, do your research and choose someone you trust. Good luck!