The below herb is sweet flag/ vasambu / bach which in south india they call it as pillai valarpan(helps in child 's growth).
Usage :
This can be given for colic infants/ vomiting/Reduces the thrush which will be seen in the tongue- Hence it decreases speech disorder.
Method:

Every morning after giving the bath to your baby, Rub this herb once and mix with either breastmilk or with warm water and apply it on the baby's tongue.
My baby is loving it and I am happy that she loves the healthy stuff.. ☺️