Suggest Treatment For Pain And Sorness On Back After An Injury

About 2 hours ago I fell on the ice landing on my low back; both feet in the air. It was a hard fall, but i was able to get up and continue working; i was hook a snow machine trailer tomthe truck. Though I had pain initially, I was able to move around and lift and have flexibility in the back. It does not feel like anything is broken. About 45 minutes later I noticed that when I would sit down in the car seat I would experience, significant pain, until I got situated, then there was no pain. With the passage og time, it became much more painful getting back into the car. Now, two hours later, I just noticed I have a large bump on my back just above my butt crack. It is sore. I assume this is just a bruse that will go away withe passage of time. I don't have too much pain as long as I don't put pressure on it.