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How to prevent cystic acne
Use a gentle cleanser made to treat acne.
Be sure to select a good acne face or body wash. Start with a typical salicylic acid or benzoyl peroxide wash that you could find at a drugstore.
Just stick with one type of wash for about a month to see if it works for you or not. Avoid washing your face and body with a bar soap that is not formulated for acne-prone skin.