A cat's sudden thick and fishy saliva may be caused by oral problems or stomatitis. You can treat the cat with a pet-specific oral spray. At the same time, pay attention to the cat's oral hygiene; if it does not improve after a period of time, it is best to Take your cat to the pet hospital for treatment to avoid worsening of the condition.
Tips:
It is best to brush your cat’s teeth and rinse its mouth regularly to keep its mouth clean. Do not feed your cat food that is too greasy or greasy. Food easily remains in the teeth.