What type of doctor should I see for a chronic seroma? (12 cm x 12 cm x 4 cm).

8 years ago I had a bilateral TRAM post breast cancer (chemo, radiation & hormone therapy). Immediately a large seroma formed (right auxilla to left groin) which was removed multiple times, injected with TISSEAL and bacteria to get it to close. It finally closed and July 2013 a new seroma started from my left side toward belly button. Every 2 or 3 months I have to get it drained (400 CCs). I get short of breath because my abdomen cannot expand plus pain that feels like I am being ripped open.