Based on what you've described, it's good to start by making sure that there's bacteria, and it's good to do a full physical skin test to evaluate the extent of the injury, and you might need to close it or brace it, depending on the size of the wound, or if you suspect bone invasion, you might need to do a normal X-ray.
Doctor, there's an open hip wound that doesn't heal, and it's been a few days, and the pain has gotten worse.