When you have nasal congestion, you may consider using products containing either phenylephrine or pseudoephedrine. These are two common ingredients in nonprescription cold and allergy medicines ...

Caution with diuretics. Avoid aspirin, pseudoephedrine-containing products, other pain relievers or nasal decongestants. Increased risk of GI bleed with anticoagulants, corticosteroids ...

Getty Images Some antihistamines, like Claritin-D and Allegra-D, come combined with pseudoephedrine (Sudafed). Doctors don’t recommend products that contain pseudoephedrine for children at all ...