stomach randomly bleeds, Intestinal Abcess, Potential Hernia

Ok, the problem is that my stomach randomly bleeds and pusses letting off a smelly discharge almost like a cross between smelly armpits and others nasty smells. I was feeling pain around my belly button which is where the discharge is coming from. It went away, for awhile and kept coming back, so finally I met with my DR. He first gave me antibiotics which seemed to help for awhile until coming back he diagnosed me with a Intestinal Abcess. I figured it was inside my stomach but once it came back, I check witht he DR again and he said it was a Abcess or Zit type of thing about 1-2 inches into my belly button.

The problem is I'm taking the anti-biotics again,b ut it doesn't seem to help and I feel that infection may be spreading because my stomach is tensing and still bleeding and I'm getting sickness and nausia.

What should I do?