Brief Answer:
For severe constipation glycerine suppository needed

Detailed Answer:
Hello and welcome to Ask A Doctor service.

I have reviewed your query and here is my advice.

For severe constipation in a child, glycerine suppository can be inserted by rectal route and she will pass stools within an hour or so. Give her lots of water, juice, milk, fruits regularly to avoid this problem in future.

If you need to check with pediatrician specifically, please post Ask A Specialist query for pediatrician.

Hope this helps. Let me know if I can assist you further.
Dr Vaishalee

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