z plasty??

Hi all! I am brand new here so I hope I am doing this right. Last month I had my 3rd surgery for polynidal cysts. In fact I am still home recovering. I am still having excruciating pain and at my follow up appointment today the Dr drained some fluid and said he feels the pain is from all the scar tissue, that my first surgery was quite an extensive resection and he would like me to have a z plasty and this should get rid of the pain. Any opinions and/or info on this procedure would be appreciated as I can't find many details online. Thanks!!