Losing a dog can be distressing, but there are steps you can take to find them. First, search the immediate area and ask neighbors for help. If they're still missing, create flyers with their photo and post them around the neighborhood, while also reaching out to shelters and vet clinics. Understand your dog's behavior by recognizing signs of distress and knowing their usual hiding spots. Finally, take immediate action by contacting local authorities and informing neighbors. Utilizing social media and organizing a search party can also be helpful.