 You can train your dog now to fear fireworks. Fireworks scare them because they perceive loud noise as a threat. The goal is to change that negative association into a positive one. Find audio of fireworks you can play for your dog. The more realistic and varied the better. Start with the audio low so that your dog notices it, but doesn't react with fear. Reward them while the audio plays with a favorite treat, toy, or attention. When your dog ignores the audio completely, you can raise the volume a little bit and repeat. Doing this in small bursts over a long period of time is best. And if your dog is shaking, hiding, or showing other signs of fear, you're doing it wrong.