adhair contain minoxidil
avilable in 2,5% solution.
you are applying it properly i.e twice daily 1ml with a dropper provided.
see its not like that you are applying it for few days & your hair will grow fast.
it takes a long time like 6-8 months of continuous use to have effect.
Many patient of mine not getting even after 8 months!!
so there is no need to worry about excess growth/growth of hair in other body parts.
your child is also safe.
if he touches then just clean it with soap water.
you also wash your hands & other body parts properly after applying.
clean pillow cover daily.