Azelaic AcidTopical Antibacterial Compare To Other Treatments OverviewHow to UseSide EffectsHow It WorksPregnancy & BreastfeedingAzelaic acid works through the following mechanism:Antibacterial activityAzelaic acid kills acne bacteria (C. acnes). Relevant Article(s):Prescription MedicationsAlternative Therapies for Acne Relevant Forum(s):Prescription acne medications