Everyone's body is different and thus reacts differently to things.
For me, less is more and natural is better. I think my dermatologist is full of bs; same with most western medicine.
Facials every 2-4 weeks.
Tea tree oil is a panacea - Trader Joe's sells a roll-on stick that is good for itchy bites and pimples. Some people do not like the smell though. :\
I have very very persistent acne, and I DO believe that what I eat has a MAJOR impact. If you cut out all flour, sugar, etc. and stick to low-fat proteins (fish, chicken breast, cottage cheese) and fruits, vegetables & nuts, it will clear up EVERYTHING. I know, because I went overboard with the Zone Diet and my skin never looked better.
Also, it's very hard to OD on H2O. You should drink 1/2 your body weight in water in ounces (if you weigh 120 lbs, drink 60 oz of water) minimum. If you drink something with caffeine, you must drink twice it's volume in ounces of water (1 x 6 oz can of diet coke = additional oz H2O). If you exercise and sweat, you must drink 1 ounce for each minute you have sweat (sweated?) (run 30 minutes = extra 30 oz H2O). And life will be good. Your body is 90% water; you need it to function properly.
Also, take a multivitamin, and calcium if you do not do dairy. Although it's better to get your vitamins direct from the source because in pill form the body doesn't absorb the properly, you need a ridiculous (to most people) amount of fruits and vegetables to get there.
I have super duper curly/wavy/frizzy/thick hair, and the best thing for it (for me) is to do as little as possible. I only wash it every other or every other other (every every other?) day, which seems not enough at first, but your scalp adjusts. I shampoo, comb through with a wide tooth comb to distribute, rinse, condition, comb through, leave for 5 minutes, rinse. I then BLOT (don't wring) and squeeze (don't twist) to get it as dry as possible, then add a leave in conditioner (I use Pearatin something, which gives it a nice twisty curl), comb through, and let it air dry. Yes I go to school with my hair wet. No I don't die. Blowdryers = bad. And don't brush your hair unless it is completely dry. Comb only. La de da, no more frizz.