Pimple On Inner Eyelid. Milia sometimes are called milk spots or oil seeds and typically milium cysts occur in clusters. Learn more about the causes symptoms treatment outlook and prevention of different types of eyelid bumps.

It is an infection affecting the secretory gland of the eyelid. The medical term for a sty is a hordeolum. An internal stye or hordeolum is a stye on the inside of your eyelid.
A chalazion results from an obstruction of the meibomian glands oil-producing glands within the tarsal plates of the eyelids.
Stye is caused by bacteria specifically Staphylococcus species. The most common cause of a red bump inside the eyelid is an area of focal inflammation called a chalazion. Although they are painless it is aesthetically disturbing that is why other people opt to remove this. Make sure the cloth is as warm as possible without burning your skin.