Hi J. -
I have a 2 year old who we just found out DOES have a peanut allergy so we carry an epi pen around with us now just in case and it's a whole new world where food is concerned - but at least we know. So, b/c of this appointment we also found out she is probably prone to bad seasonal allergies as well and sure enough she has been having trouble just as I do with seasonal allergies, sneezing, runny nose, minor cough. As you said it's not so awful that it really impacts her but is is annoying. So we went back to the pediatrician and they gave us Zyrtec. I knew she was not feeling "great" so i gave her some before bed last week and then she goes to a 2 year old preschool twice a week. I took her to school the next morning so I was not with her for about 5 hours....when i picked her up they said our normally happy, sweet, helpful little girl had hit another child - of course she is 2 and i understand some of this will happen - but she has never acted out like this before and the teachers were very shocked as well. I don't know if the zyrtec had anything to do with her acting different or not - but I have not given her anything since then as I want to make sure when/if i do I am with her all day to see if her behavior changes at all.
I have not been back to the Dr. since this, but I will definately speak with our Pediatrician about this the next time we are in. I have spoken with a friend who had her daughter on something similar for seasonal coughing/allergies, etc... and she said her daughter was a different person when she was on it... So, I'm anxious to hear if you get any further feedback from other mom's. Let me know if you can if you hear any more about Zyrtec.
Best of luck!
N.