Stress, as well. If he/you/anyone stresses alot, it may also increase acne.

I'm 23, female, and really dont break out around my period unless I stress over it.

Best thing to do is relax, wash your hands often to rid any grease on them, and wash your face softly. My sister uses all that acne product stuff, and she hasn't ever really gotten rid of hers.. I never have, and haven't really had any at all.

My personal opinion, of course.

You know, here's something i wanna share.
I've been having terrible acne problems since i was 13-14, and im 22 now but still having it from time to time. I've been seeing tons of local dermatologists around here and most of the meds they gave me worked, but half a year after, my acnes would pop out again. so for now i had stopped seeing any dematologists, coz i've been spending so much on it so now its time to buy my arts stuff for my univ as well. and there was this one week, the whole week, i was eating only a meal a day because i overspent my poclet money buying my art materials. and during that one whole week when didnt eat, i found out my acne gets better bit by bit. so it mustve been all the food that i ate all these years. maybe too mucn oils or something. so now im just gonna be more more picky in the food i chose.

but im as thin as an aneroxic, if i eat salads, n etc, all the time it wont help me gain weight! arghhh dilemma!

you can eat healthy and still gain weight. You should get your weight or desired weight and divide it by 2 that's how many grams of protein you should have. And the average person should eat about 25 grams of fiber a day. If you choose lean meats, nuts, legumes/vegetable proteins. your skin will not only clear up but you will also gain weight and if your working out at all it will most likely turn into muscle mass. If you right down what you eat for a week or two and add up your protein and fiber everyday as well as how many calories your eating. I'm sure you'll notice a difference.

Also diet does have alot to do with acne. Greasy, high sugar, chemicalized, over processed foods tend to make people break out not to mention have no nutritional value.

The simple answer is no, diet cannot cure acne.

Diet may cure acne for some people. If you eat a traditional diet, whole foods, etc., you may see a significant change in your skin. Pasteurized skim or low fat milk depletes Vitamin A. Raw whole milk is a better choice. Animal fats are better than vegetable fats. You need probiotics to aid in digestion. The Weston A. Price Foundation has been researching conditions related to modern diet for many years. Acne is rare in countries that don't have a McDonald's on every corner.

I always found that too much processed food and fizzy drinks make my complexion slightly worse.

Avoid sweets and you'll be fine

Well speaking from experince my face has always had spots. I was just like your son always ate everything good and bad. I tried all kinds of creams, cleansers & pills to clear it up. I've even tried that Pro-Active stuff, All that just never worked. So out of the blue one day I started drinking 9 to 10 cups of water a day and everybody so the results. I never noticed it until everybody said something. My face became very clean & clear. I ate what every I wanted but also watched how much I ate. I mean I also had plenty of healthy food to. I know its hard to drink that much water a day, but if you make yourself do it your body gets use to it and then it can't go with out it you will start to get dihydrated, and no matter how much juice & soda you drink to get reid of the dihydration it won't go away unless you drink plenty of water. So give it a try. Good luck.