Suggest Treatment For Chest Pain After Rib Injury

11 days ago my son kneed me in the chest while we were playing. I feel to the ground in the worst pain of my life, went to the ER, and got dx with mild rib injury. Every since I have been in severe pain only help with vicodin or vodka. 3 times I have coughed in the last week and each time I hear a huge pop and nearly pass out in pain. I feel like my 9th rib is seperated from the cartlige and I am not getting better. Any advise?