I got the same advice, but it didn't and after 12 months (don't panic!) I got a bad infection. If the fluid doesn't drain or disperse, it can create a rather good environment for the bacteria we all have internally. Massage did help me, and I was well on the way to getting it entirely clear when I got the infection. My sensible surgeon, in spite of me having lots of antibiotics, wasn't convinced I was clear so operated "for a good clean out" - there was still a lot of infection, he did the right thing, no more infection and no more fluid! A good lymphoedema therapist may be a start. Most seromas do clear by themselves but not all and not always fast. Good luck.