New Zealand Honey Co. Raw Manuka Honey UMF 24+ MGO 1122+ - 4.4oz Starter Size - Authentic New Zealand Sourced - Monofloral UMF Certified - 125g

As others have stated, a culture should be done by the vet to ensure that the bacteria causing the issue is being treated effectively. It's not unusual when treating for one bacteria to have another bacteria that is resistant to the antibiotic being used take advantage of the decrease in good bacteria from the antibiotic usage. Yeast can also take advantage and overgrow. You can add medicinal grade manuka honey as a treat, it will help the antibiotics work more effectively (this is a good one - note the MGO (over 1000) and UMF (24+) numbers on it if you want to look elsewhere for some: https://a.co/d/05YD0q27 )