My daughter has allergies. She is 6 now but we have been giving her seasonal allergy meds for a couple of years.
Benedryl we only give her at night. Wipes her out in a heartbeat. Zyrtec made her crazy. Can't explain it, but nuts, wired, not the same kid. We give her children's Allegra. It works great and has no side effects on her. All allergy meds effect kids differently. Just wanted you to have information so that if one does not work, it's ok to try something different. No child should have to go through an entire day suffering.