Thank you all so much for your help. We called the ER vet and regular vet too. They both said that because he didn't vomit (we searched high and low), and since he is playful, eating and acting normally otherwise they agree that he probably ate something that irritated his gums or his tummy which is why he was salivating so much. Both vets said that it wasn't necessary to come in but if he changed at all we could bring him in. They said he is trying to flush it out of his mouth. He is barely doing it anymore thank goodness. I don't know how he got around the baby gate but we are buying a new one that is better this weekend. Thanks for the suggestion about the silica packets. We looked but didn't find anything. Those scare us too! Also, thank goodness there was no medicine in the closet. We really appreciate all your comments. It's so scary when they don't feel well.
