Solutions to the problem of white foam in dog's drool:

1. If it is caused by poisoning, it is recommended to feed enough drinking water or use soapy water to induce vomiting.

2. If it is caused by a foreign body blocking the esophagus, it is recommended to go to the hospital to take a X-ray to determine the location of the foreign body and then remove it.

3. If the dog is infected with canine distemper, parvovirus and other infectious diseases, it is recommended to consult a doctor for medication.

4. If it is caused by parasites, you should send it to the hospital for deworming treatment in time.

5. If it is caused by gastrointestinal disease and indigestion, you can give it probiotics to regulate its stomach.

6. If it is caused by strenuous exercise, the dog should exercise appropriately after each meal, mainly walking, and avoid letting the dog run around.