Those headaches that keep flaring up during the spring could actually be due to allergies, even if you have no other symptoms ...

But it also helps send signals between cells, which is part of why you have allergy symptoms ... decongestants with other medicines, such as pain relievers and/or antihistamines.

Phenylephrine is the most common active compound in over-the-counter drugs like Benadryl Allergy Plus Congestion ... relieving nasal and sinus congestion. But since then, more research has ...

The ingredient is found dozens of drugs, including Sudafed PE, Benadryl Allergy D Plus Sinus and Vicks DayQuil ... be given to children to help relieve pain from the congestion, he said.

If sinus pressure from congestion is making you tired or causing other symptoms like a headache, you can treat it with over-the-counter allergy medications such as oral antihistamines, Dr. Yu said.

Phenylephrine — found in drugs including Sudafed PE, Vicks Nyquil Sinex Nighttime Sinus Relief and Benadryl Allergy Plus Congestion ... side effects such as headaches, insomnia and nervousness.

A Food and Drug Administration (FDA) advisory committee unanimously voted Tuesday that current scientific data does not support the use of the active ingredient in over-the-counter products like ...