Hi Dear,
Welcome to HCM.
Understanding your concern.
Thanks for your query . There can be many reason for swollen lips like
allergic reaction ,infection (herpes) and
angioedema. In your case the probable cause of
lip swelling is angioedema .Angioedema is cause by various factors like bodies reaction to certain foods (sea food, nuts ,eggs or milk). pet hair, sunlight and certain medicines (painkilles ,antibiotics and blood pressure medicines)
I would suggest you to
consult dermatologist for proper evaluation and to rule out conditions like anaphylactic shock or herpes. Doctor may prescribe anti histamine drug , anti inflammatory drug (ibuprofen) or
adrenaline injection in more severe case .
For now do cold compresses several times a day ,avoid sun exposure and take over the counter anti histamine medicine like benadryl .
Hope your concern has been resolved.
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Get Well Soon.
Best Wishes,
Dr. Harry Maheshwari