OK guys I have her a massage, she seemed to like it/know I was trying to help.
I held her vertical in the flowing water and gently rubbed down the bulge, first few times a clear/milky liquid came out, then it changed to orange, then after a minute or so it turned yellowy red.
Now the bulge has gone, she is still floating at the bottom of the tank.
People mentioned secondary infections, the medication I have available is:
Aquari-Cycline
Doxycycline
Blue Planet: Multi-Cure
Amoxycillin
And about 8 tablets of 400mg Metro