Five Days Ago I Cleaned The Wound Of A Dog

five days ago i cleaned the wound of a dog bite for another person who got bitten. i did that with a piece of cotton afterwards i have found that i had an old scratch or something like that on tip of my index finger, ( that scratch or whatever it is actually i dont know )it doesnot perfuse blood and doesnot have clots, and it is not bright red now should i have the vaccine