What are milia?
Milia are small, bump-like cysts found under the skin. They are usually 1 to 2 millimeters (mm) in size. They form when skin flakes or keratin, a protein, become trapped under the skin.
Milia most often appear on the face, commonly around the eyelids, forehead and cheeks, though they can occur anywhere.
Primary milia occur in children and adults. While they may disappear without treatment in a few weeks, they can also last for several months.
It is not always possible to prevent milia, for example, when they occur in newborns.
However, when milia are associated with other skin conditions or injuries, swift treatment may keep them from appearing.
Tips for preventing milia include:
- avoiding excessive exposure to the sun
- avoiding the use of thick creams or oil-based products
- exfoliating between 2 and 3 times a week