So, men with prostate issues and nasal symptoms should use a new antihistamine like cetirizine (Zyrtec) or fexofenadine ...

Antihistamines, which you might think would be a good choice for nasal symptoms, can unfortunately affect the bladder.

Phenylephrine is a medication that’s been used to relieve nasal congestion caused by colds, allergies, and hay fever, per the U.S. National Library of Medicine.