Infection after multiple capsulectomies and a hematoma?

I had 2 open capsulectomies on my right breast 6 months apart. The second time PS did an implant exchange from smooth to textured. About a week and a half later, developed what I thought was a seroma and he went in an put a drain in, but he said it was a lot of blood. The blood kept draining for a week without getting any lighter, so he removed the implant, cleaned out the pocket and suctioned out any blood and clots, and replaced the implant. I am 3 days post op with a swollen pinkish breast, and when I saw him today he had the nurse give me an antibiotic injection. He wants to see me in two days, but doesn't seem very concerned. I am freaking out! Am I getting an infection? Is it going to go away? I have had 5 surgeries this year (Bilateral implant exchange in June 2010, open capsulectomy on right side in December 2010, Open capsulectomy/implat exchange on right side on April 29, 2011, Drains inserted May 12, 2011, exploration/suction etc. May 20, 2011) and I do not want another one! I am so distraught, and my PS said he feels so bad for me, but I am just so upset. Help! I want to know if it sounds like he is doing the right thing here.