This is a test of commonsense with single/multi-choices. 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.

Available options:
[-] 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.
[-] This will help reduce oil production in your skin. Try to moisturize after cleansing with astringents and gently moisturize after washing.
[-] Moisturize your skin before bed because it can cause pimples. You can use an astringent lotion or moisturizer for acne-prone skin.
[-] Use cleansers once per day for dry, acne-prone skin. You can use a sugar-free cleanser or you can steam or apply an astringent-free cream like bentonite.
The answer is:
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.