Is it 12 months old now? That is great! Marissa got on it when she was seven going on eight, her doctor had to be begged to try something "allergy" related to control her. Her doctor said at the time (2 years ago) that it was not recommended for kids under 12 years old.
She agreed to try it and see if there was any improvement, every stuffy or runny nose led to an ear infection or sinus infection or both, leading up to a climax where she was put in the hospital and needed IV antibiotics because of an ear infection that just kept getting worse. Before the singulair she got an infection and had to be put on antibiotics every month. She has had only had ONE sinus/ear infection since being on Singulair (TWO YEARS AGO), and it was one that was starting up at the same time she first started taking it.
This is one of the things that I know we did right and would repeat.
Good luck,
Terry