White spots on the skin can happen for a variety ... Milia are white, tiny, harmless bumps that develop when dead skin cells (keratin) get caught under the surface of the skin.
Unfortunately, because it’s under the skin, regular spot fighting creams might not work. If you find that's the case, gently exfoliate the area with a salicylic wash to get rid of the dead skin ...
A nurse from the Jinmen Dermatology Hospital told Chinese media outlet Modern Express that Ms Liu had neurofibromatosis, a genetic condition which may cause light-brown flat patches of skin.