Welcome to Healthcare Magic Forum
you are suffering from a very common teenage problem namely acne vulgaris
....before coming to the exact treatment, i would like you to follow certain precautions:
1. Avoid using any oily creams or lotions over face as much as possible. you can however use oil free moisturisers
2. Wash your face frequently inorder to keep it dry
3. Drink plenty of water
4. Try to avoid eating dry fruits
5.Avoid touching or squeezing of pimples
6. Avoid Hair oil
7. Always use a sunscreen (SPF> 26) when going out in the sun .
You might need to apply some antiacne medications like Clindamycin
gel over the affected area.
But if inspite of the above measures, you continue to develop the lesions, then you might need a course of oral antibiotics
So i would recommend that you visit a dermatologist
in that case for proper examination and treatment .
Hope it helps
Wishing you speedy recovery