Itching in a specific area, like the upper corner of one eye, is usually due to local irritation, allergy, dryness, or early infection of the eyelid (such as a stye or blepharitis), and is often not serious. You can manage it by avoiding rubbing the eye, gently washing with clean water, and using a cold compress to reduce itching. If there is slight swelling or crusting, a warm compress may help instead. Using lubricating eye drops (artificial tears) can relieve dryness, and keeping the area clean is important. Avoid using any creams or unprescribed eye drops near the eye. If you notice increasing redness, pain, swelling, discharge, or vision changes, or if the itching does not improve in a few days, it is best to consult an eye doctor for proper treatment.