Hi there,
Yes she did! The abscess was too big to remove so they drained it and we flushed it for 2 days, but then the hole closed up. We have continued on painkillers and baytrill (which she doesn't see m to be having any reaction to yet!). I don't want to speak to soon, but I think, possibly, the remaining puss has gone. She's enjoyed a couple of 10 minute grass sessions so far and she seems super happy!
On the other hand - she's now peeing blood. Very very red blood. This happened when she had the bloat and I took a picture to the vet who wasn't sure what to do. I'm almost certain it can't be an infection as she's been pumped full of every kind of antibiotic for the last few months. As a result though she was on reduced veg, and I maybe haven't been the most attentive with what vegetables she has been getting in an attempt to keep her vit C levels up. Her wee is extremely sludgy but her xray didn't show any stones. I fear too much carrot and spinach leaf may have contributed to this sludgy wee. I'm now following the low sodium/potassium diet and as she's always been rubbish at drinking water I've increased the cucumber (her favourite!) in the hope to dilute her wee a bit.
She doesn't wheek in pain when weeing (although she is on painkillers so that could be why).
Anyway, that's my update. Hopefully the peeing blood/sludge can be sorted with home remedies. Guinealynx has lots of possible advice. I'll update if anything works particularly well, although any advice is always welcomed!