Acne or  pimples... Due to hormonal changes..Oily skin causes it...Common in adolescent age...May occur in adults also.. Food like Oily foods, ice cream, chocolate and sweets increase it.. Treatment depends on the grade of pimples or acne..So, please  send photos by direct online consultation as it's a must to see which grade of pimples or acne for accurate diagnosis and treatment.

Acne is almost always a Hormonal issue. U can't stop it but can prevent further occurance with a good diet and lifestyle on addition to medication depending on requirement. Don't pik or squeeze ur acne ad this is what will lead to scar formation. There r lasers available for scar management but it will improve over time. Keep urself well hydrated and avoid junk to begin with. Consult a Dermatologist for further details.

For acne, there are good medications and creams available to prevent it...so scars, procedures will give you good results... kindly consult online with relevant photographs for proper assessment and treatment