Decongestants are relatively inexpensive and readily available. Still, they’re more difficult to obtain than over-the-counter antihistamines. Pseudoephedrine (e.g., Sudafed) is another class of ...
Another important consideration is the active ingredient in the drops. Antihistamines, decongestants, and mast cell stabilizers are all commonly used in allergy eye drops, and each works in a ...