Have a look on here:
http://www.guinealynx.info/uti.html
I have had two guinea pigs with infectious UTI this spring/summer and lost one to ongoing bladder stone/cystitis trouble.
- The correct dose for baytril is 0.4 ml TWICE daily. PLEASE give it to her and go back for more when you have used it up.
- Gertie also needs some painkiller, as you reported considerable swelling (from vet). Her bladder and urethra are very painful right now and peeing is excruciating!
- you can use bepanthen salve (from pharmacy) on the swollen bits and where there are burns from the pee.
- To counter the effect of the baytril on her guts, she needs a probiotic (either from vets or from p@H).
- If baytril doesn't work, badger your vet to prescribe pediatric septrin 0.5 ml twice daily for an adult guinea pig. This mild antibiotic is a lot easier on the guts and works especially well on UTI.
- Keep a giving Gertie as much unsweetened juice/water mix, best by sryinge. As much as she will take as often as possible.
- Gertie needs to have an x-ray (without anesthesia) to exclude the presence crystals/bladder stones, which are a frequent cause of UTI and need to be treated (even if some vets are afraid of them), because they can kill a guinea pig under immense suffering.
Wishing you all the best - and URGING you to up the dosis of baytril, please!