Allen called for unity from players and fans in the run-up to Saturday's visit of AFC Wimbledon and was rewarded with a 4-0 win which means victory at Burton next Saturday will see them safe.
"All the players played their part," said the Bees boss. "The subs that came on did well. The senior players that are injured helped us during the week.
"All the staff have been fantastic and then of course the crowd getting behind the players. You see players putting in that energy and commitment and we played some good football."