After a dog gets pneumonia, the body will be relatively weak, and it will also suffer from discomfort and pain. If the dog is not in good spirits, it will squint its eyes. The dog needs to be treated in time, and at the same time, it needs to be supplemented with nutrients to enhance the dog's physical condition. Generally, puppies and older dogs are more likely to get pneumonia, so their bodies are easily overwhelmed. Coupled with their poor physical fitness, they will develop symptoms such as poor mental health, and they need timely treatment to avoid aggravation of the disease.