What should I do if I have been bitten by a dog for seven years without rabies vaccine?

Nothing will happen, because if rabies really comes on, it will react within a few months, if nothing happens in seven years.

That is, you weren't bitten at that time, and only when you broke your skin would you be infected.

After being bitten or scratched by dogs, cats, wolves and other animals. As long as the skin is not bitten, it is difficult for rabies virus to invade the body through intact skin, but there are traces of tooth marks on the skin that cannot be numb. Sometimes, although there is no skin damage, in fact, tooth marks mean skin damage that is invisible to the naked eye. In this case, rabies virus may invade the human body along the tooth marks. Therefore, the bitten part should be disinfected immediately, and the part with tooth marks should be thoroughly cleaned with soapy water, coated with iodine, and then injected with rabies vaccine all the time.