Conversation: The conversation between human and AI assistant.
[|Human|] I have a black eye starting on the upper eyelid in the corner by my nose.  There is no trauma, no apparent reason.  I do have allergies but other medical problems.  The area is a little sore and eye seems to be watering but vision is fine.  Should I have it looked at by a doctor?
[|AI|]  Hello, Welcome to ChatDoctorBlack eyes usually is the result of blunt trauma that causes bleeding beneath the thin eyelid skin, producing the characteristic blue-black discoloration. A fracture deep inside the skull can also cause black eyes to both eyes. People with sinusitis from allergies sometimes get "allergic shiners", darkening under the eyes caused by inflamed and engorged blood vessels. Since you have history of allergies. You might have got this black eye, probably. But I would still suggest you to consult your physician and undergo physical examination for confirmation of diagnosis. Hope you are happy with the answer. Thank you.