Hello,
Thank you for your query at DoctorSpring.com
I understand your concern.
I have reviewed the images and it definitely looks infected. Dog bite or scratch does not always spread rabies, but does make the area more prone to bacterial infection.
Since you have so much pain, the infection could be spreading and it is better you get it physically examined once. If required they can put you on appropriate antibiotics.
Hope this was helpful,
Regards.