Who, this sounds like what my son is dealing with, for the second time. The inflammation is so high in your body. I am not sure where you are from but something that was done for my son was a biological plug. It is not a common procedure but in our case, it worked for the first leak. My son has exactly what you are describing. An abscess, no visible fistula, but trust me, it’s there. We are on round two. They drained the abscess a few weeks ago and he will have a pouchoscopy shortly. If the fistula is there, they are planning on the biological plug. It is a custom made device that is inserted by interventional radiology. It then gets absorbed by the body and seals up the leak. We are treated at Weill Cornell in NYC. Two years ago, my son was only the 13th patient at their center to have this procedure. If you want additional information PM me and I will be happy to give you further details.