Itchy eyes can occur in conjunctivitis, and this is especially true in allergic conjunctivitis. Allergic conjunctivitis is usually due to an allergic reaction of the eyes to certain allergens, most commonly plant pollen. The symptoms of the disease are usually an itchy eye, which is often the main complaint of patients when they go to the clinic, and may be accompanied by a foreign body sensation, burning sensation, photophobia, tearing, and a little mucus discharge. These symptoms usually last for a long time, up to about 2-3 weeks. The most commonly used medications are sodium cromoglycate eye drops, pranoprofen eye drops, and azelastine hydrochloride eye drops. If symptoms are particularly severe, glucocorticoids, such as flomylone eye drops, may also be considered. Topical cold compresses can also be given twice daily and can be effective in relieving symptoms.