I have eczema on my hands that can sometimes get pretty bad,
but I've noticed if I supplement with omega-3 or evening primrose oil it's much less aggravated.
What kind of skin condition are you refering to?
Pimples, acne? Mine disappeared with the help of tetracycline.
As far as the weight issue goes, all I can suggest and I know students don't have much time, park as far away from the entrance as possible and walk, take the stairs instead of the elevator, eat healthy snacks during classes very easy to pack (baby carrots, celery sticks, fruits, nuts, cheese......etc....)
And if you're school has a gym and you find the time, do 30 minutes of cardio 2-3X week.
Include a weight training session 2-3x a week to help burn even more calories. Muscles burns more calories at rest
And most but not least stay away from their junk food, and I mean whole eggs, gravy, fried foods, and whatever else that falls into the 'junk' category. (chips, cookies, chocolate bars etc...)
Of course a treat day is always in order to keep our sanity, but if you eat clean 5 out of the 7 days is sure does help.
Get a nice chocolate protein bar to replace the usual chocolate bar.
And 2-3x per week isn't a lot. I was working out 5-6 days per week until I went back to college this past year. Well for me it was impossible to do the 5-6 workouts, I managed to squeeze in 2 sometimes 3 per week. Still got results, just not as quick.
This year I am planning on doing it at least my 5 days, even if it's in between classes, I find I'm more energetic and more alert when I work out consistently.