What are treatments for seromas after VaserLipo (other than repeated aspirations)?

Hi, I had Hi Def Vaser Lipo on my chest, upper and lower abs, one month ago. Two seromas formed on my lower abdomen, one on each side. I've gone back to my surgeon almost daily for drainings. The lower-right seroma has stopped filling up (good!). The lower-left still fills up and is drained daily, about 15-20 CCs now. Still wearing compression garment with pad over seroma. What other treatments can stop it? Steroids? "Tacking" it to create scar tissue? Risks and benefits to these?