A packet of AGP Ltd.'s Zyrtec pills, left, sits alongside a counterfeit product in this arranged photo in Karachi.

When I imagined being pregnant , I never thought it would involve excessive sneezing, watery and itchy eyes and a sometimes-stuffy, sometimes-drippy nose? But I have been completely flattened by seasonal allergies lately.

Serrano, MD, Karen. "Antihistamines for Treating Allergies" 30 June 2008. HowStuffWorks.com. 01 May 2012.

Using over-the-counter medications with children can be tricky, but doing so while battling the sniffles and sneezes of allergy season can be fatal.