Abscesses
An infected abscess is a localised collection of pus that is encapsulated within inflamed tissue (Figure 9). It can be caused by a wide range of bacterial and fungal infections. An abscess is different from cellulitis in that it has a defined edge and shape.
An abscess is characterised by:
* raised skin surface;
* localised heat;
* tenderness and pain;
* redness of the skin (in white people);
* pus formation; and
* a foul smell if it has begun to discharge.
People with abscesses should be referred for medical advice and treatment. The abscess will require antibiotic treatment and/or lancing to release the pus.
Injectors should be told never to try to lance or puncture abscesses themselves. This can spread infection and without appropriate antibiotic cover they can quickly develop septicaemia (blood poisoning). They should be encouraged to alternate injecting sites as this will lessen the risk of localised inflammation, infection and abscess formation.