vomiting while feeding is usually done by all the infants , it is usually regurgitation and not vomiting because lower sphincter of food pipe is not that strong in case of ifants as is of adults
To stop it, proper burping is required, baby should be taken in the lap, with stomach against the shoulder of mother and chin resting over the shoulder, then small thursts with mother's hand (movement at the wrist joint of mother's hand & not at the elbow joint) should be given for 5to7 minutes.
Usually burp will be audible to mother.
Still 20% of the time regurgitation will be there.
No need to worry for that.
Next Steps
If still there is no relief/improvement visit your pediatrician
Health Tips
Visit your Pediatrician