Hello I share your concern. I have gone through your question very diligently and I will try to help you out in best possible way. At the outset I would like further information for better assessment of the condition as If possible upload me a photograph? Since how long you have this problem?? for pigmentation I would advise you to use kojic acid ointment which is a depigmenting agent. Use it at night and any sun screen lotion at day time. For acne you may require a course of antibiotics like Doxycycline or Amoxyclav under medical supervision with clindamycin ointment to be applied locally. Wash your face with antiseptic face wash and keep it clean and moisturised all the time. multivitamin supplement and healthy diet consisting of lots of fresh fruits and vegetables, egg and milk is advisable. you should avoid fatty fried spicy and junk food and carbonated beverages. Hope this answers your question please feel free to ask for follow up question with a photograph so that I will be able to tell you more precisely. Best wishes