The reason why cats died after eating mustard in a few days: Mustard is an irritating food for cats. Cats eating mustard will damage the taste system and gastrointestinal digestive system. Using a large amount of mustard will cause cats to foam at the mouth. , vomiting, diarrhea and other symptoms. If timely rescue measures are not taken after the cat eats mustard, the cat will die.

First aid method for cats eating mustard:

1. When you find a cat eating mustard in the early stages, you should stop the cat immediately. If the cat only licks a little bit, it is recommended to feed the cat a certain amount of water to help the cat neutralize the pungent taste.

2. If you find that the cat has eaten too much mustard, help the cat to induce vomiting immediately. You can use hydrogen peroxide or soapy water to help your cat induce vomiting and vomit out the mustard that has been eaten in the stomach.

3. If the cat has adverse symptoms such as foaming at the mouth, vomiting, etc., take the cat to the pet hospital immediately for gastric lavage. Then feed medicine to regulate the gastrointestinal tract according to the actual situation.