Potty training is a major milestone in a child's development, but setbacks can happen. It can be frustrating for both parent and child when accidents occur after making progress. However, handling setbacks with patience and positivity is key. First, take a step back and assess the situation. Is your child experiencing a medical issue or emotional stress? Address any underlying issues before moving forward. Next, adjust your approach. Maybe your child needs more frequent reminders or rewards. Lastly, stay consistent and don't give up. Potty training takes time and setbacks are a natural part of the process. Remember to celebrate every success, no matter how small.