You have my sympathy, my daughter has been battling this painful condition for 8 years so I know how miserable it feels ! In this time she has had one failed surgery, performed by a general surgeon ! I would suggest that you try to find a colorectal surgeon and preferably someone with experience of the newer surgical techniques. There is a post here which recommends the following doctor.
DR M Rickard.
Address: Suite 209 - 211
Phone(s): 9767 8317
Also the following doctor near Wollongong was recommended:
RE: DR. Warwick J Adams
MBBS MS FRACS Colorectal Surgeon
Fairy Meadow, NSW 2519
Phone: 02 42834065
As these posts were old details may not be current but could be a good starting point.
There is an amazing wealth of information on this website, suggest you read the sections on surgical procedures and other options. My daughter has had some success in managing flare ups with a combination of antibiotics and sitting in a warm bath with 1/2 - 1 cup epsom salts 4 times daily. Another surgery is inevitable but we are hoping to find someone who has specialised in this condition next time!
Good luck !