Answer: Abscess incision and drainage
Explanation: Abscesses are mostly caused by bacterias, most commonly the Staphylococcus aureus, especially the community acquired methicillin resistant staphylococcus aureus (MRSA). Without adequate evacuation of the pus, the infection will continue to accumulate, leading to further circulation and systemic infection.
However, In cases were there is lack of response to incision and drainage alone, antibiotics are usually recommended.