I am 24. I never had a zit in my life until I turned 21. It was as if my skin turned from perfect porcelain to a sensitive, easily blushing, acne prone face overnight.
I've tried everything under the sun for acne. First I tried over-the-counter treatments. If you can buy it in a drug store, I've tried it. Those harsh treatments only made my sensitive skin more red and irritated. Then I tried the expensive stuff in department stores. Instead of a decrease in acne, I only saw the money in my wallet decreasing.
During the summer I got desperate, so I went to a dermatologist. She prescribed a heavy-duty anti-biotic (which wiped out my already weak immune system and made me extremely sick). Then she prescribed duac cream for morning and differin for at night. The products were very expensive, and it took almost 2 months to see any results, and my skin was still not clear.
About 2 months ago, I started to do my own research. I discovered the miracle of "milk of magnesia"! This is supposed to help with constipation, but instead of taking it internally, I started to apply it to my face every night before I went to bed. The results were amazing. In less then a week, my skin went from ruddy to smooth and clear.
Milk of Magnesia is less than $4 for a big bottle! It does not irritate skin, and can be used every single night without any side effects (except a nice complexion!).