what does petroleum jelly do
The petroleum jelly works as a lubricant on the digestive tract and will make it easier for the cat to cough up or vomit the fur ball. You can add petroleum jelly to your petâs food. Add Â½ tbsp of petroleum jelly to the catâs food, once per day until the cat eliminates the hairball. Vaseline in excess may cause diarrhea. Petroleum jelly contains mineral oil, which should be given with caution to cats, as the mineral oil will drastically reduce your petâs vitamin A deposits.