There are many causes of runny nose.

1. Allergic reactions to irritating smells

Dogs will react to some irritating smells, such as pollen allergies, or flower dew, perfume smell, etc., which may cause the dog to runny nose.

2. Cold

If a dog is infected with bacteria or viruses in the respiratory tract, and has symptoms such as coughing and sneezing, it is a cold, and the dog will also have a runny nose reaction at this time.

3. Rhinitis

Excludes the above two types. If the dog's nose is yellow and pus-like, the possibility of rhinitis is higher; this requires treatment under the guidance of a pet doctor.

4. Canine distemper

Dogs suffering from canine distemper can also experience runny noses, so owners must pay attention to whether the dog has diarrhea, body temperature rise, mental depression, etc. If there is such a situation, please take the dog to medical treatment in time.