I don't remember 'when' acne started but I do remember how it just wouldn't go away. Initially, there just zits on my forehead then those just shifted to various locations on my face. It has been about a decade, I think and I have finally found something which works!
Since, this has been a very long journey, I will try to cover everything I remember but it is not going to be very organized.Also, I am no doctor but an engineer who liked biology and who has done extensive research on why her acne won't go away!
