Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concern. As per your complain oily skin and hormonal imbalances both are a potent cause of acne vulgaris or pimples.. In individuals with oily skin there is more sticking of dirt particles on face, more of clogged pores, bacterial infection and pimple formation.. I would suggest you that the first thing in your treatment is to keep your skin clean and dry and also avoid skin cosmetics that make your skin oily.. You can wash you face multiple times a day using a salicylic acid containing facewash.. You can also prevent clogging of pores by exfoliating your skin twice a week.. In case if the pimples erupt apply Clindamycin gel to reduce infection and benzoyl peroxide gel.. Niacinamide or Nicotinamide containing creams are also helpful to clear acne.. In case if there is no improvement in a month consult a Dermatologist and he can advise you antibiotics to be taken orally like Clindamycin or Minocycline, oral and topical retinoids and also advise you treatments like Microdermabrasion.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora..