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 as it's a must to see which grade of pimples or acne for accurate diagnosis and treatment.

The treatment of acne differs according to the grade of involvement. Some people have more oilyness on the face which results in breakouts. After completing treatment for controlling the active breakouts, tablets can be stopped and creams need to be continued to prevent recurrence. Diet and lifestyle modifications are also important. Please don't do any self treatment such as over the counter Steroid creams. Don't burst the pimples with your fingers as it can result in ugly scars. The marks and pores left behind after the pimples heal can also be treated. Please call me or send your photos through online consult option for detailed prescription and diet advice.

It sounds like inflamed acne lesions,medicines will help but u need a proper consult