Pink eye, or conjunctivitis, is a bacterial infection that requires a prescription for antibiotics, rather that over-the-counter medications, according to AllAboutVision.com. However, if the cause of redness in the eye is allergies instead of conjunctivitis, topical over-the-counter eye drops containing antihistamines work to stop eyes from reacting to allergens.
An over-the-counter eye drop that gets rid of redness is naphazoline ophthalmic, which goes under the brand names of Bausch & Lomb Opcon-A or Clear Eyes Redness Reliever Eye Drops, notes Walgreens. For a homeopathic remedy to pink eye, Similasan's Homeopathic Irritated Eye Relief Drops stimulate the natural defenses of the eye against redness, watering and burning. For a viral pink eye infection, there are no eye drops that cure it, and patients must wait it out for seven to 10 days.