2 Weeks Post-op Gynecomastia Surgery(breast Tissue Removal) - Vancouver, BC

So I had gynecomastia surgery done 2 weeks ago. I only had breast tissue removed since I developed extra tissue through puberty. My chest looked pretty flat a week after my surgery but it started getting bigger again and went to see my surgeon. He told me that it's filling up with seroma. Now my chest looks the way it used to look before my surgery and my surgeon is using a needle to drain the fluid at least once a week. Will my chest to back to looking flat anytime soon? Also, anything I should avoid drinking or eating that would help stop the seroma fluid from forming?

Thanks!