Chalazion is a cyst on the eye lids and develops when a meibomian gland gets blocked and leads to swelling, and it can be of variable size. For the first few days the cyst is inflamed and you might see a small white head on the top of it which then tends to shrink, but might take months to disappear completely
The inflammation is caused by a sensitivity to a common bacteria found on your skin. When the openings of the small oil glands around your lashes become blocked by inflammation, a small tender swelling will occur on the upper or lower lid.
Some symptoms are:
Chalazion occurs due to blockage in one of the tiny meibomian glands of the upper and lower eyelids. The oil these glands produce helps to moisten the eyes. Inflammation or viruses affecting the meibomian glands are the underlying causes of chalazia.
Initially hot compresses with massaging of the area in addition to an antibiotic ointment are all that is required. If the cyst is very big to start with and doesn’t drain or if it tends to persist for months and is bothersome, it is best removed surgically.