There's a dog , he's been run over by some vehicle. His leg is most probably broken, his skin has been badly damaged. I'm worried that there's no veterinary hospital nearby , he might develop maggots eventually due to open wound. Please guide me through.
Ask a doctor / nurse to treat him. The basic anatomy of a flesh wound and broken leg should be similar enough to a human that the dog does not have to go without any treatment. Put a muzzle on him, try to calm him and hold him still during the procedure.
From experience I know that you can give him Iboprophen against pain and infection in a dosage appropriate to his body weight. That is half or a quarter of a pill, depending on his size and weight.