Hello, Welcome to healthcare magic. Acne is due to adolescent hormones and you will continue to have it till that hormonal influence is over. You have not mentioned your age. Wash your face with a pH balanced face wash, preferably a one containing 1-2% salicylic acid. You may apply a gel containing clindamycin 1% in the morning over pimples and Benzoyl peroxide 2.5% gel at night over pimple prone areas. Get these prescribed by your doctor. Your skin tone is determined at the time of your birth itself and it is decided by the concentration of melanocytes and circulation. Therefore any treatment or procedures can never make you fairer than what you were at the time of birth. But most of the people will acquire more pigmentation as age increases, we call it facultative pigmentation. Lot of factors determine it, most important being sunlight, others include dust, pollution, smoking, less hydration, intrinsic ageing and free radical damage, stress etc. Treatments should be to bring your pigmented skin back to your normal skin tone and make the skin tone even all over the face. I would recommend you to use a face wash twice a day ideally a one containing glycolic acid as it helps in exfoliation and to even out the skin tone. The most important product will be a sunscreen. Half an hour before going out apply a sunscreen and reapply it every three to four hours. Hope this helps you. If you would like to ask me a direct query, click on this short url http://bit.ly/dr-j-chacko , where you have an option of uploading a picture of your pimples so I can assess the grade and severity and guide you more accurately. Take care.