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Daughter with swollen upper lip

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My 4 year old daughter has a sudden swollen upper left lip. We don't know what caused it and unsure if any allergen is involved. The swelling started around 9 hours ago before bedtime and she is yet to wake up.

What can be the cause?
Should we bring her to the emergency?

Her medical background:
She occasionally gets hives once every two months with her eyes and bridge of her nose puffy and swollen. She also had Kawasaki when she was 7 months old and had an IVIG drip with aspirin therapy for several months. That stopped when she reached 1 year old.

Category: Pediatrician

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Category: ICU/ Critical Care Specialist
 20 Doctors Online

Dear Parent,

Thank you for your consult at

The description appears to be a manifestation of a hypersensitivity/ allergic reaction to an unknown allergen. The swelling part does not appear to immediately life-threatening, though I would recommend that any child with allergic manifestation involving the mucosal surfaces be assessed in a paediatric emergency setting. The fact that she has not woken up yet, is worrisome. Kindly bring her to paediatric emergency for further evaluation. She may require anti-inflammatory/ anti-allergic medications.

On the long term, she needs to be evaluated for underlying atopy-allergy spectrum and needs to be started on preventive therapies. Identification of the allergens would also become a priority as sometimes, allergen exposure can lead to life threatening anaphylactic reactions in certain sub-group of children.

Hope this helps, please feel free to discuss further.

Dr. Saptharishi L G
MBBS, MD (Pediatrics), PGDCRL

Dr. Saptharishi L G
Category: ICU/ Critical Care Specialist
Senior Residency: DM,  Pediatric Critical Care, PGIMER

Residency: MD, Pediatrics, Postgraduate Medical Education & Research (PGIMER), Chandigarh, 2013

Internship: JIPMER, 2009

Medical School: MBBS, Jawaharlal Institute of Post-graduate Medical Education & Research (JIPMER), Puducherry, 2008
Dr. Saptharishi L G and 4 other Medical Specialists are ready to help you

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