Swelling and pain in the outer corner of the eye may be caused by trauma, blepharitis, acute dacryoadenitis and other factors.
1. Trauma: If you accidentally bump into the corner of the eye, it may cause local soft tissue contusion, which may lead to symptoms such as congestion, swelling and pain in the outer corner of the eye.
2. Blepharitis: If the eyelid is infected by pathogenic bacteria, an inflammatory reaction may occur, and localized inflammatory stimuli may lead to pain, redness, swelling, or pus in the outer corner of the eye.
3. Acute dacryoadenitis: If the lacrimal gland is infected by pathogens, acute inflammation may occur, resulting in localized redness, swelling, and pain above the outer corner of the eye, which may also lead to a palpable solid mass on the outer side of the upper eyelid, with pressure and pain and other symptoms.
If the swelling and pain at the outer corner of the eye is more serious or accompanied by other uncomfortable symptoms, you should consult a doctor promptly to avoid delaying the condition.