I had a bit of a rough time with my piggies this summer. First one of them got an abscess in her mouth. This was opened from the outside and left to drain. It took about 2 weeks of syringe feeding, washing the wound and keeping it open to drain before she even started eating again. She was 650g at one point (and 4 years old) when she used to be more than a kilo. But she recovered.
Then (co-incindentally, the vet assures me) my other pig became ill. The stress may not have helped. Despite much syringe feeding, drugs of all kinds and all the TLC I could give, she died.
Since then we have got 2 new friends for the first pig, her weight has gone back up to 850g and she has done really well. Until now.
The wound is weeping (though not much). There is no lump like before, but she is having a lot of trouble eating and her weight is falling again. I have taken her back to the vet, who has given some antibiotics but she is now only eating grass of parsley 
. I will take her back tomorrow, as despite the antibiotics she is really struggling physically to eat. She is still obviously hungry though, which is heartbreaking. I still have some critical care left over from when I was 'nursing' my other pig so she has had some of that, and an evening of sitting on my lap being hand-fed parsley.
Any thought as to what more I can do?
Thanks in advance for reading through this.