I Am Suffering From CSOM. I Had Tympanoplasty 2 And

I am suffering from CSOM. I had tympanoplasty 2 and a half months back. The graft had taken well. but after a one month I got cold and there was a little retraction. Now three weeks after the retraction was discovered, I have noticed a very thick deep yellow discharge. I have been prescribed antibiotics. But now I am scared that the surgery has failed and The graft did not take. Was all those precautions and medicines worth nothing? I am really scared now.