I have a momma dog who has 5 puppies (rat terrier mix). This morning I noticed a puppy throwing up. What came out was some foam and a worm(I think) it died within moments of being exposed to air. A short time later I noticed another puppy throwing up foam. I checked the stools & can't see visible worms. These puppies were born on June 9th. Other than the brief episode of vomiting these babies seem healthy & happy. I have some liquid wormer for puppies but not sure how to dose it for this age. Any suggestions?
Thank you