Hello,
Thanks for your query.
Pimples are a common thing in adolescent age.
clean you face with antiseptic soap whenever you come in from out.
Drink more water.
Reduce fats in your diet.
For
dandruff you can use Nizrol shampoo on alternate days.
Take head bath FREQUENTLY.
Hope I have answered your query.
I will be available for your follow up queries if any.
Wishing you good health.
Regards
Weight reduction is managed by regular exercises, diet control.