Hi welcome to Health care magic forum. Dog bite should be seen from many corners as what type of dog, street dog or pet, whether it is vaccinated or not. How many days did pass from the day of bite, is the dog healthy after 15 days of bite, and the site of the bite.
Regarding anti biotic amoxycillin
will be suffecient and it should be continued for 7days for complete eradication of the infection.
The dog bitten should be watched for at least 15 days , if it dies or if there is change in behavior of the dog, you should got anti rabies vaccination
If the bite is On the face or neck, or other places if bite is extensive , he should get vaccinated.
I advise you to have vaccinated for tetanus
and rabies what ever the type of bite may be. I hope you are satisfied for with the reply,and Thanks for calling.