Solutions to the rotten corners of the cat's mouth:

1. If it is caused by nasal congestion or viral infection, antibiotics are generally needed to control the infection and at the same time inject antibiotics. Amino acid nutritional supplements to coordinate treatment.

2. If it is caused by trauma, it is recommended that the owner cleans the ulcerated area every day and uses oral spray to reduce inflammation and sterilize the ulcerated area.

3. If it is caused by oral disease, the owner needs to clean the cat’s mouth. You can first use water to help rinse the cat’s mouth.

The reasons why the corners of a cat’s mouth are rotten:

1. Cats may also suffer from oral diseases, such as feline stomatitis, gingivitis, etc. His mouth was ulcerated.

2. Cat’s mouth ulceration may also be caused by calicivirus infection.

3. It is also possible that the trauma to the corner of the cat’s mouth was not properly treated, causing the wound to become inflamed and ulcerated.