Scratched by the domestic pet dog teeth but no trace, indicating that the skin is intact, you can not need to vaccinate, local alcohol disinfection treatment. Being scraped by the teeth of domestic pet dogs but without traces indicates that the scraping caused to the skin is not obvious and does not affect the protective effect of the skin, so the possibility of rabies virus infection is unlikely to occur, and you can not need to vaccinate, but you need to local alcohol disinfection treatment. If you are not sure whether there is any damage to the skin, you need to rinse with running water as soon as possible, then rinse with soapy water, go to the hospital in time for examination, by the doctor to determine whether there is a tiny break in the mucous membrane of the skin or wounds and other phenomena, if there is such a situation, you should be injected as soon as possible with a rabies vaccine, to prevent the occurrence of rabies.