Faucitis in cats is an inflammation of the pharynx (the back of the throat). Allergies, viral or bacterial infections might cause this condition. Together with drooling, sneezing, and coughing, a cat with faucitis might also have a bad breath.
Periodontal disease is another potential reason why your cat smells like death. In the beginning, cats usually have reddish, irritated gums. It’s necessary to consult the vet right away as to prevent further complications.