Medically reviewed by Johnstone M. Kim, MD Key Takeaways A swollen eyelid can be due to pink eye or allergies or a more serious condition like cellulitis or thyroid disease.If the swelling doesn't ...

Non-ulcerative or squamous blepharitis is a type of blepharitis caused by seasonal allergies or other allergic reactions. It can lead to red, swollen eyelids along with patches of white or gray scaly ...