Here's why it's important to see a vet immediately:
* Infection: Pus is a sign of infection, and it could be caused by bacteria, viruses, or parasites. Left untreated, these infections can spread and cause serious complications.
* Underlying medical conditions: Vaginal discharge can also be a symptom of other health problems, such as tumors, uterine infections, or even hormonal imbalances.
* Pain and discomfort: Your dog is likely experiencing pain and discomfort, and it's important to address this as soon as possible.
Please contact your veterinarian immediately to schedule an appointment. They will be able to examine your Shih Tzu, determine the cause of the discharge, and recommend the appropriate treatment.
In the meantime, avoid touching the discharge or attempting to clean it yourself, as this could worsen the infection.