Hello, Thank you for the question.I am Dr.A.S.Desai and I look forward to assisting you .
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Does the left eye /upper lid have pain too? Is there any double vision with both eyes open?
Did you get hit on the head or forehead the previous day/evening? Any insect or ant bite? Do you have known allergies?
upper eye lid and all around the eye . no
no bug bites little pain.
Ok. One last question- Do you have any upper molar toothache/caries or any sinusitis ?
Alright. Since the only symptom is that of a swollen upperlid in left eye, it could be due to allergy ( wherein the exact allergen may or may not be known- it could be anything from dust to pollen in the air). Such an allergic edema ( angioneurotic edema) can range from mild to severe form. The mild form responds well to anti-allergy medicines such as Tablet Zyrtec, 10 mg , once at bedtime for a week.
The more severe form has generalised edema with constriction of airways causing breathing difficulties. This form needs urgent treatment (ER).
no breathing problems. so i will try the anti-allergy medicine .thanks