Hello, I have this pain in my knee and I went to the doctor about a month ago and they drained it, it was an abscense, with cellulitis in my leg.  But now my knee is starting to hurt again, not near as much but I tried to squeeze it and nasty stuff came out of it.
HI, thanks for using Chat Doctor This may mean that the abscess has recurred. This is a possible complication of an abscess. It would be best to see your doctor for assessment which would include examination and likely incision and Chat Doctor. A course of antibiotics may also be needed as well. I hope this helps