I had a small scratch on my knuckle and i am not sure if it was from my pet dog or something else(when this happened dog was not vaccinated,vaccination for dog was scheduled in the coming week) and it was a very small scratch and when i washed my hand after handling my dog i saw some blood very very minute (i did not notice any blood before washing, once i started washing my hand with soap and water there was little irritation and then i saw some blood very minute) i got my self vaccinated on 6th day (first dose) my second dose was after 3 days but my 3rd does did not happen it been over 7-8 days for my third dose should i take the third dose or what should i do?