Zyrtec causes drowsiness, even in me and I am an adult. Zyrtec also makes me moody. For that reason I do not like Zyrtec and use Claritin. Or there is also Allegra.
Nasonex, is a type of steroid.
Do a Google search on it and read about it.
I also have Nasonex, but I do not use it, unless I have to or if/when my allergies are bothering me. I do NOT use it for prolonged periods.
When stopping any type of med... a withdrawal can occur.
For example: my Husband uses Sudafed for his sinus problems. He uses it everyday. But once he ran out and so didn't have it for about a week. He had "withdrawals" from it... and he had trouble sleeping.
ASK your Pediatrician, for alternative meds for her.
There are MANY kinds of allergy meds, to be used if/when she needs it.
And also, sometimes a person just does not need it. So you have to be able to discern that.
Allergies, can vary in intensity. Some days, allergy meds are not even needed. So know that. And for some, allergies are not disruptive. For me, I am allergic to things in the air/pollen/dust etc. But I ONLY use my allergy meds/Claritin, IF and when I need it. Some days it does not even bother me. You need to teach your child, to TELL you when it is bothering her, for example. And you as the parent, need to learn to discern... if/when she needs it. Allergy meds are not always, needed every single day.
I am speaking from first hand experience. I have had, allergies since I was a child. I, as a child, KNEW myself and my body, and when/if I needed my allergy medicine. It was not everyday.
So, teach your child how to tell you and know her body/symptoms. And you also need to gauge it and her.