Great exercise for acne treatment. cheap healthy best way to loose weight some people's skins get really dry and itch after swimming in the pool for long time. When you are swimming, your skin is constantly contact with water. Great way to clean your pore thoroughly!. if you are in the pool, well, chloride water will also has a positive affect on your acne. if you swimming in the sea,, thats even better. Salt water helps sterilize your skin!