It is quite strange that you are worried about local infection and not thinking about RABIES
which is almost cent percent fatal,if takes place.
First of all you should know that whether the dog is a pet and vaccinated or it is a stray dog.
If it is a stray dog then check whether it is alive and alright or has died.
If the dog is untraceable or died then you should not delay and consult the doctor for the active and passive immunization