Methods to remove dog’s bad mouth:

1. Change dog food and adjust the diet structure. Give your dog a low-fat and low-salt dog food, try to eat a lighter diet, and eat more fresh fruits and vegetables.

2. Maintain oral hygiene. The owner should brush the dog's teeth regularly, drink mouthwash, and prepare some snacks for the dog to grind and clean teeth.

3. Remove diseases. When a dog suffers from oral disease or gastrointestinal disease, it will cause bad breath. After the disease is cured, the bad breath will naturally disappear.

4. Clean teeth. When your dog has dental calculus, it will cause bad oral odor. You can take your dog to the pet hospital for ultrasonic teeth cleaning to remove the dental calculus.

5. Probiotics. Dogs have bad mouth because of poor gastrointestinal function. You can feed the dog some probiotics to mediate gastrointestinal function and promote the dog’s digestion and absorption.