Had a 10 month old with a virulent virus many years ago.
She vomited after every feed for three weeks but did not
have to be hospitalized with dehydration.
My  family doctor was great and told me that the best thing
in the world for sick babies was, you guessed it, breastmilk !
Obviously she kept some down and we all survived this ordeal.

Ruth Bacon  IBCLC     Ontario