1. Simple Cold

If a Cavalier King Charles Spaniel has a runny nose, the first thing to consider is a cold. Owners should reflect on whether the dog was kept warm enough during care—whether the dog slept on a cold floor or lived long-term in a cold outdoor environment.

When it is found that the dog only has a simple cold, owners can give some cold medicine to the dog and also need to observe body temperature changes at all times. Because sometimes the early symptoms of infectious diseases are very similar to a cold.

2. Infectious Disease

Infectious disease refers to canine distemper that occurs in puppies aged 2 to 3 months, with a very high fatality rate. But a Cavalier King Charles Spaniel younger than one month old will definitely not get distemper; owners must not be deceived by unscrupulous veterinarians. In this situation, owners should first feed a bit of Shuanghuanglian oral liquid, then take the dog to the vet for treatment.

If the Cavalier King Charles Spaniel gets an infectious disease, not only will there be a runny nose, but also sneezing. Additionally, there will be much eye discharge, poor mental state, and decreased appetite, among other symptoms.

3. Allergy

Some dogs have sensitive noses, especially during seasonal changes, and are prone to allergic reactions to airborne dust particles. At this time, the dog's clinical manifestations are runny nose and sneezing. Appetite remains very good, and there is no fever. In this case, owners only need to give some desensitizing medication to the dog or remove the dog from the allergenic environment.