Re: How long does acne last?
There really is no exact method of estimating, since everyone is different. The piece of string method is exactly right. Impossible to tell for sure. I know people who never had acne, and others like myself that had it for over 25 years! It can be caused by too many things, hormonal, food, stress, sickness etc.
To try and control it, don't eat fatty foods or low quality junk food, increase your water intake by 100%, eat natural foods fresh fruit and veggies (skins off) , supplement with 50 mg natural Zinc, and scrub with Cetaphyl with some baking soda after breakfast.
Rinse with very warm water for about 10 seconds, scrub with the Cetaphyl, dip your fingers in baking soda and scrub for 30 seconds. Rinse off with warm, and then flush with cold water for about 10 seconds.
After dinner, or after lunch use the Cetaphyl ONLY.