Hello, The first part of these results come from some of the contents of the cyst or mass is placed on a microscope slide and examined under a microscope. Polymorphonuclear cells are a kind of blood cell that is associated with infection. Rare is not significant. Squamous epithelial cells are a normal part of the skin or the mass. Gram-positive cocci and gram-negative bacilli are two types of bacteria that were also identified with the microscope. In the second part of the report, a sample of the material inside of the cyst was cultured for bacteria. Culture results found two different bacteria: Staphylococcus aureus(the gram-positive cocci) and Escherichia coli (the gram-negative bacilli). Both of these bacteria are common causes of infection. What you refer to as the sensitivity report(Organism 1 and2) is actually the culture result report. There is no sensitivity report in the information you provided. Amoxicillin-clavulanate is an antibiotic that should kill these bacteria. It is not normal for such a cyst or abscess to be draining for weeks and still not improve. You must return to the surgeon as soon as possible so the infection does not spread and to see what s causing drainage. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Arnold Zedd, Pediatrician