Phenylephrine works by constricting the blood vessels in the nose ... so begin using them before allergies stuff your nose. Taking antihistamines like Claritin (loratadine), Zyrtec (cetirizine ...

To stop a runny nose due to allergies, your best bet is to take an ... But overuse of decongestants can cause jitteriness and increased blood pressure. Doctors recommend using decongestants ...

Itchy, watery eyes and stuffy noses, sure – but not cardiovascular ... Instead of boosting his blood pressure medications, his cardiologist recommended he try allergy shots, which can help build ...