Most pets will vomit occasionally. It happens. When it does, many pet owners will call to ask a local veterinarian for advice rather than bring their dog in to the clinic to be seen. I understand why people do this, but vets can't really give you advice without having a client-patient relationship.
Every pet parent should know how to care for a vomiting pet, so I'd like you to read this article. Home Care for the Vomiting Dog
There are many great tips in this article. It is the type of advice you would get if you were to call a vet and ask for advice. I recommend that you print this information and keep it handy. You never know when you will need it.
Go to: http://www.petplace.com/dogs/home-care-for-the-vomiting-dog/page1.aspx
If your dog gets sick and you are worried - please contact your veterinarian.