A cat gets angry, injured, and infected with calicivirus, which can cause rotten corners of the mouth. First of all, when the cat gets angry, the above symptoms may appear. It is recommended that the owner drink more water and reduce the protein intake for the cat. Secondly, it is also necessary to consider whether it is a secondary bacterial infection caused by trauma. It is recommended that the owner clean up the ulcerated area every day, and use oral spray at the same time, which has the effect of anti-inflammatory and sterilization on the ulcerated area.

In addition, in order to prevent the cat from scratching and causing aggravation of infection, it is recommended to wear Elizabethan Circle. Festering at the corners of a cat's mouth can cause severe pain and even affect the opening and closing of the mouth. It is recommended to feed thinner and softer food during this period. If the cat's condition worsens, don't waste time and send it to the veterinary hospital for treatment in time.