Blocked airway. Mucus can form behind a tumor or foreign object in your windpipe and cause an abscess. If bacteria get into the mucus, the blockage stops you from coughing it out. Blood-borne causes.

Boils result when the bacteria Staphylococcus aureus enter the skin and cause an infection. S. aureus live on the skin of many people and thrive in warm, moist areas, such as the groin and inner thigh ...