If you are getting pus it is not just comedonal acne. You will probably have infected acne or cystic acne. You will need a combination of oral and topical medicines initially which will be later converted to only topicals over a period of 3 to 6 months. You have to understand that acne is a part of physiological changes in the body. So u have to try to find the root cause. Faulty diet, sedentary life style, hi stress lifestyle, hormonal imbalance, weight gain etc are some of the causes of recurring acne. If you have further queries you may book an appointment and meet me. Warm regards Dr. Rajdeep Mysore Chirag Hospital Bangalore