If the cat keeps foaming at the mouth and chirping, it is probably caused by eating the wrong thing and causing food poisoning. The cat needs to be sent to the hospital for treatment immediately.

There is another possibility. The cat suddenly starts foaming at the mouth. It may first be due to eating. Bitter or irritating things, such as medicine, pepper, soap, shower gel, etc. When this happens, the owner can feed the cat a little water, and it can usually recover in a few minutes to half an hour.