[J12345678]

I recently bought Natures Answer PM, but am confused on when to take it. Some people say the first 15 days of your cycle while other people say the last 15 days. Since the brand Natures Answer only has 100mg of PM and I take it once per day, would it be safe to just use it everyday. I have heard that most people take 500-1000mg per day. Also, I heard that when people stop taking PM, their skin breaks out. I get acne very easy which is why I would not want to take it on and off every 15 days.