I am just wondering how long does it take for this drug to get ou...

Is your daughter on any other allergy meds If so stop them too I just stopped my son's flonase & Now he is finally doing better My son obviously has a bad reaction to ALL allergy meds?
Just a thought GL I hope she gets back to her normal self soon

i think 3 weeks is a good estimate for the most significant improvements. after that, the children seem to improve even more for several months. i think they are re-learning how to live life without the assault of the side effects.