This is a test of commonsense. Complete the next sentence:

How to get rid of cystic acne
Keep your skin clean and moisturized.
Start washing your face twice a day with a water soluble cleanser that is suitable for acne-prone skin. After washing, use an astringent lotion or toner-you can buy these over the counter.
After that moisturise your skin with a light, non-comedogenic moisturizer to keep your skin hydrated without adding excess oil to you skin (which can clog your pores). Use an exfoliator containing retin-a.