Study Comparing Acne in Patients Taking Oral Minocycline to Patients Taking Minocycline Plus Topical Tretinoin

100 mg capsules OD for 3 months

100mg OD Minocycline for 12 weeks plus OD Topical tretinoin 0.01% for 12 weeks Followed by topical tretinoin 0.01% OD for 12 weeks alone