Hi. As per your description you have a relatively assuring diet and lifestyle and still having acne. It may be a difficult acne. There are different ways to achieve a flawless skin after acne and it needs medical interventions. ​​Acne treatment has multiple stages - to control new breakouts, to clear the sequalae (pigmentation and scars) and to prevent a relapse. Certain test help to understand the reasons for having such an acne. Meet a Dermatologist for precise help. Dr MK Agarwala