When a dog vomits in the morning, it is mainly considered that the dog suffers from stomach and liver diseases. Due to the emptying of food in the stomach in the morning, the irritation of gastric acid and other substances to the gastric mucosa is increased, leading to varying degrees of vomiting. If your dog's vomit is accompanied by an obvious sour smell, then the main consideration is excessive gastric acid secretion. In this case, drugs that inhibit gastric acid secretion and protect the gastric mucosa can be used.

Other reasons for vomiting in dogs:

1. After eating too much, the intestines and stomach cannot digest it, leading to vomiting. You need to take the dog for a walk and digest it properly.

2. For vomiting caused by gastroenteritis, the dog needs to be taken to the hospital for medical treatment.

3. If excessive exercise leads to gastrointestinal discomfort and vomiting, the dog can rest for a period of time.

4. If you eat something you shouldn’t eat, such as unclean food, expired food, milk, etc. If you have severe vomiting, you need to take you to the hospital for gastric lavage.