Hi, I can understand your concern for the problem. This is due to activity of oil galnds and melanocytes which causes pimples and pigmentation on facial areas. The most important part in treatment is by lightening agents such as Kojic acid or azelaic acid cream application which you can use under dermatological guidance. Hydroquinone can also be used but in my series of patients I prefer using Kojic acid or azelaic acid cream. The most important thing is sun protection by all measures. Eat healthy diet containing lot of Vitamin A and Vitamin C. Do not try applying over the counter products as these can further aggravate the situation. Protect yourself form direct sunlight. Use a good sunscreen on exposed area for 2-3 times and drink plenty of liquids everyday. You should meet a dermatologist to plan the best treatment according to grade of pimples and pigmentation. All the best.