Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain Acne can occur due to causes like Oily skin, clogged pores, bacterial infection, inflamed, hormonal imbalances while blemishes are occurring in your case due to post inflammatory hyperpigmentation secondary to pimples.. I would suggest you to start washing your face with Salicylic acid and glycolic acid containing facewash.. You can apply creams or ointment containing Benzoyl Peroxide and Clindamycin over the pimples.. You can apply Adapelene gel at night.. For blemishes apply creams containing Kojic Acid, Glycolic acid and arbutin.. Vitamin E gel and azelaic acid preparation are helpful.. For both conditions exfoliate your skin twice a week.. So cool compresses.. Limit sun exposure and always apply sunscreen lotion when going into sun.. You can take more of green leafy vegetables in diet. Avoid oily food.. Drink plenty of water.. You can also go for treatment like Microdermabrasion, dermal rollers and chemical peeling.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.