Need help for my sister who sended home in a critical condition

My sister got an accident last week and she was examine. She had a broken upper jaw n underneath her eye. They gave her medication and told her that the hospital is full. They book her to go to Steve biko on the 6th. Now she is in a critical condition. We are scare that she might get infection. We real need help. We have been going up and down without no help.