The worms medicine you are referring to is called albendazole. It should be regularly given every 6 months so the intestines are clear of worms. In your situation give syrup zental 5ml after dinner one time.
Next Steps
If you observe any worms when she poops then let me know so we can plan her treatement well
Health Tips
Check her hemoglobin status and give her a multivitamin like syp zincovit 5 ml twice daily since these worms consume blood and nutrients from the kids body . Hope this helps