Types of sedating antihistamines
Nonprescription (over-the-counter, or OTC) eyedrops and oral medications are commonly used for short-term relief of some symptoms.
Seasonal allergic conjunctivitis (SAC) is by far the most common type of eye allergy.
If symptoms persist or over-the-counter remedies do not bring relief, see an allergist, who will review your medical history and symptoms and conduct tests that can reveal an eye allergy.
Those tests may include an examination with a microscope, which will show swollen blood vessels on the surface of the eye.
The itching may be so bothersome that patients rub their eyes frequently, making symptoms worse and potentially causing infection.
Perennial allergic conjunctivitis (PAC), as its name implies, occurs year-round.