In general, the veterinarian may recommend a follow-up appointment within 7-10 days after starting antibiotics to ensure the medication is effective and there are no adverse reactions. However, some antibiotics may require more frequent monitoring, while others may only need a follow-up once the medication is completed.
It is important to follow the veterinarian's instructions and bring the cat in for follow-up appointments as recommended to ensure the best possible outcome for the cat's health.