avyaan is 4 month old mouthing face is on , he is taking hands in mouth and vomit milk frequently is this normal,also baby Vicks is safe ?

A. Teething could be happening with your child which is why your child is keeping fingers on hand into the mouth and also has started to have Dooling or mouthing so you can introduce Teether t to your child and yes you can apply Vicks on the chest back throat and feet of your child