A rat bite could easily become infected and ooze pus for days.

One mark on his chest was red and inflamed, oozing pus that glinted in the candlelight.

My middle finger, which I sliced open when I slipped in the Pongo, is badly swollen, oozing pus.

Or mayhap oozing pus.

My legs became swollen and my buttocks were raw and started oozing pus, a former detainee is quoted as saying in the report.

These were oozing pus seven months after the crash, when he was still barely able to pedal his bike for fear of stressing the bones.