question: 7 days ago admitted to hospital with abscess.  It was drained and a drainage tube inserted.  I.V. antibiotics were started, which are now finished.  Antibiotics still given by mouth.  Swelling still present and another area starting to swell.  Doctor thinks it may be the mesh lining from hernia surgery that is causing the infection and disconfort.  What test should be done to determine if this is the case?  How long do you wait to see if the infection clears on its own