This is a test of commonsense. Complete the next sentence:

How to care for a sick dog
Monitor your dog's daily activity.
Keep a notebook of when your dog relieves himself, when his symptoms occur, when he eats and drinks, and so on. This helps to establish a pattern to the symptoms.
It can also be a very useful tool for the veterinarian to diagnose your dog's illness. If your dog is mildly sick (not eating the best for a day, restless, vomiting once or twice, a bout of diarrhea) you can carefully observe your dog at home and phone your vet for advice.