8 doctors weighed in:
What is the reason behind sudden swelling of the eyelid?
8 doctors weighed in

Dr. Theodore Wu
Ophthalmology
5 doctors agree
In brief: Swollen eyelid
Another cause could be preseptal cellulitis, whereby an small infection, such as a stye, starts to spread throughout the eyelid.
This needs to be treated right away wtih oral antibiotics, since this infection may spread into the orbit and brain. See your local ophthalmologist immediately if you suspect this cause!

In brief: Swollen eyelid
Another cause could be preseptal cellulitis, whereby an small infection, such as a stye, starts to spread throughout the eyelid.
This needs to be treated right away wtih oral antibiotics, since this infection may spread into the orbit and brain. See your local ophthalmologist immediately if you suspect this cause!
Dr. Theodore Wu
Dr. Theodore Wu
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1 comment
Dr. Steven Machtinger
Cellulitis is certainly a possibility with sudden swelling of the eyelid. Its usually associated with redness, warmth to the touch, & fever. Cellulitis around the eye is a medical emergency. If you fear that you have this see your primary care physician or emergency room doctor. They may be able to see you sooner than an opthalmologist.
Dr. Steven Machtinger
Internal Medicine - Allergy & Immunology
3 doctors agree
In brief: Angioedema or a bite
Could be infection, insect bite or sting.
Eyelid swelling is also often due to angioedema, probably best explained as a hive of the eyelids. When hives affect the eyelids, lips, hands & feet the swelling is often deeper, more generalized, & can hurt rather than itch. This is called angioedema. The cause is usually an allergy. Common triggers are foods, medications, bee stings, and animal danders.

In brief: Angioedema or a bite
Could be infection, insect bite or sting.
Eyelid swelling is also often due to angioedema, probably best explained as a hive of the eyelids. When hives affect the eyelids, lips, hands & feet the swelling is often deeper, more generalized, & can hurt rather than itch. This is called angioedema. The cause is usually an allergy. Common triggers are foods, medications, bee stings, and animal danders.
Dr. Steven Machtinger
Dr. Steven Machtinger
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