Oatmeal is fantastic for your face; it can exfoliate and soothe your skin at the same time. I like to use oatmeal as an alternative to regular cleansers when I break out badly because it isn't as drying. I don't know if the milky substance that comes out of oatmeal when you add it to water is considered milk but I know it smells good and is good for your face.
Grab some oatmeal.
How much to use is your preference.
Add lukewarm water. I'd say the ratio is 1:1 oatmeal to water. So, about 50/50 equal parts.
You can take the soggy oats and squish them on your face to make a mask. Leave for 10-15 minutes and wipe off with water.
Or, you can gently rub the oats in a circular motion on your face and rinse off with warm water. Oatmeal is a natural and gentle exfoliant.
Or, you can use the "milk" for a soothing spray after a hot shower.
Just take a bowl and a colander and dump the bowl of already mixed oats and water into the colander and gently push the milk through. Then, take a funnel and pour the milk into a spray bottle.
Of course, you don't need a funnel or a spray bottle, that's just what I personally prefer.