Knee Boil Question About This Thing On My Knee PLEASE ANSWER?

Question about this thing on my knee PLEASE ANSWER? - knee boil

I asked, but only 1 responded, and I did not understand his answer,

I scratched his knee and not look at him, then it was to cook, that makes my knee hurt a little bit DIFF places. I could be black ointment to put on. I pressed the most, but when you close a wound pus there ..

Explain what happened, what happened, what a please!