Can flavored beef jerky be the cause of my puppy's excessive vomiting?

So, a couple days ago my friend fed my dog jalape�o chilli pepper flavored beef jerky and for the past couple days he's been vomiting a lot. He won't eat very much, but when he does he throws it back up. We tried making him boiled chicken and rice, but he didn't even take an interest in it. He'll drink water, but that just comes back up too. When he first started getting sick, he would cry like something was seriously hurting him. We're going to try to schedule an emergency appointment at the vet tomorrow, but we're just worried. He's seriously scaring us. Please help.