My doctor told me to give my son Zyrtec for his allergies, has anyone given that to their child and it helped them a lot? My son keeps waking up at night with the worst stuffy/drippy nose the past month and we came to the conclusion with his doctor that it was allergies. I’ve never given him any kind of allergy medicine so I’m just a little nervous! Anything else I can do to help with his allergies? I already got him an air purifier which seems to help a lot already