I had a booster dose for anti-rabies vaccine after being bitten the second time. do i need another shot after being bitten the 3rd time?

Depends on the : Length of time after the last immunization.

Possibly: Depends on what bit you and the level of risk of rabies in your community. If it is still a problem in the wildlife of your area and you were bitten by a credible source of rabies, it is worth your while to get another shot. The alternative is a 100% fatal disease. No has yet survived a rabies infection and all the gory details are unfortunately true.