Inflammatory breakouts are red, pus-filled bumps caused by bacteria that invade blackheads and whiteheads. The official name for this pore blockage is called microcomedo. They can be painful or sensitive to the touch and can appear large and inflamed. This type of acne appears deeper in the skin and is more likely to cause scarring. You can treat this type of acne with a combination of topical and oral medicines. Your dermatologist can help you determine an effective treatment plan that can help kill acne-causing bacteria.