There are many reasons why pores get larger, and the skin can't retain enough water if they do, leading to a milky appearance of the skin.
One of the main factors is that oil traps water inside an oil molecule and keeps it from evaporating; clay particles produced by some body washes can also do this trapping. On top of that, dirt and bacteria block tight junctions between cells, which causes blood vessels to dilate in order to let more water into the intercellular space.
There are many reasons why pores get larger, and the skin can't retain enough water if they do, leading to a milky appearance of the skin.
One of the main factors is that oil traps water inside an oil molecule and keeps it from evaporating; clay particles produced by some body washes can also do this trapping. On top of that, dirt and bacteria block tight junctions between cells, which causes blood vessels to dilate in order to let more water into the intercellular space.