Acne treatment has multiple stages - to control new breakouts, to clear the sequalae (pigmentation and scars) and to prevent a relapse.
An understanding to the cause of acne should be established or this keeps recurring.
Acne is a disfiguring disease but a good dermatologist will be able to make your needs of a flawless skin successful.
Oral medications along with chemical peels should work well. There are 4 primary causes for a person to develop acne and all of them should be addressed well.
Once you achieve a flawless skin, you need to maintain it accordingly.