Milia are tiny hard keratinised ‘pearls’ which sit just under the surface of the skin.
They vary in size from a tiny grain of sand to garden pea.
The exact cause is unknown, but rich creams, too much Vitamin C and high cholesterol have all been apportioned blame.
They are more common in dry skin. Milia can also appear in response to injury to the skin such as sunburn.
They are treated by applying the heat energy of electrolysis to them.
After treatment a tiny, pin-dot crust will form which will heal and fall away, usually within a few days, leaving no marking.