my baby pihu 3 year old, she is having constipation problem, I have tried alot of medicine but it doesn't work, she don't eat properly

A. Prune juice you can give before your child goes to sleep in the night along with that you can apply a drop or two of castor oil in the Naval of the child one time in the afternoon and one time in the night before sleeping start the day with a glass of warm water and start giving more of fibre to the child and fluids also