My soon-to-be 2-year-old daughter's pediatrician prescribed Ryna 12 S for her allergies. Should I discontinue the use of this medication, too?

The petition did not cover the use of prescription drugs for allergies. That's a separate question from over-the-counter cough and cold medications used for colds. While I can't give you any specific advice, I would say it would be fair to talk about any concerns with your pediatrician.