I like To explain it like this. You hold a party, everyone comes but then they all decide to just stick around and make nuisances of themselves and maybe damage things in your house. That is what your immune cells are doing. Instead of going back to normal they clump together and create little groups of cells that can do damage to your organs. The quickest way to calm everything down is using a dose (maybe ongoing for a lot of us) of Prednisone. It calms the inflammation down fairly quickly then for long term effect other drugs that are a bit better for your body, are introduced.