according to different people, you should choose the personal anti-acne solution. 9 F, H: `1 q1 r5 s: F' stake me for example, the most effective solution is DOCTOR LI's ACNE-PIMPLE MEDICATION(SHEN QI AN CHUANG SHUI). It can solve my acne problem nightly. and it is very cheap, about 36 yuan/ 100 ml in domestic supermarket. it is my optimal choice.