hello..‘Welcome to HealthcareMagic Forum’.
its is important to rule out causes like faulty diet,insufficient water intake,
Wrong eating habits like insufficient chewing..
Avoid Hurried Meals and Irregular meals
give her a high fibre diet..
incorporate fruits such as Bael,Pear,Guava,Grapes,OrangePapaya and Figs,Spinach
along with it give her nux-vomica 20 drops mother ticture in 1/4 cup of water at night..
and nux-vomica 200 single dose its a homeopathic medicine and it acts as a laxative..
wishing her good health..

thanks for choosing healthcaremagic.Your concern is right.But i wanted to tell you that if she comfortable in passing stool after many days then there are no major issues concerned.If she is eating well,growing in weight then major things are not there.In children you can not give too many laxatives so please do not experiment unless your doctor ask to give it.Avoid things that contains maize and starch like bread,biscuits etc.Give her more of liquids,leafy vegetables to eat.If you are in India try to change to position for potty in traditional Indian seating style.This helps in many cases.Try to look for any pain she is having or some cuts in anal region because which she may avoiding passing stool.Keep patience and follow your doctor.