Apple cider vinegar can also treat oily skin. Mix 50% apple cider vinegar with 50% cool water. The mixture functions as an astringent.
According to folk wisdom, a tablespoon of apple cider vinegar before each meal will aid in digestion. It is best to take the vinegar with water. ACV can potentially burn your throat.
Best Home Remedies gives us an ACV facial mask that supposedly clears up acne.
Make a face pack of bran (partly ground wheat) plus baking soda and water. Mix into a paste, apply to the face , leaving on for 15 minutes. Rinse with solution of 1 part apple cider vinegar and 8 parts water.
I won’t vouch for this as a cure for acne, but it will, at least, exfoliate your face and remove dead skin cells which is an aid to the acne sufferer.