Paille, who was injured early in the first period of Sunday's 5-2 win over the Florida Panthers, could return to game action Saturday.
The Bruins are in Montreal to play the Canadiens on Wednesday and then return home to play the Phoenix Coyotes on Thursday.
"Yeah, he's feeling much better," Julien said after the team's skate Tuesday at Bell Centre. "Like I said the other day, it's very minimal, but they deemed it a concussion so he's going through the protocol right now," adding that there's "a very good possibility" Paille will play on Saturday.
Paille also suffered a concussion in December and missed seven games. He has nine goals and seven assists for 16 points in 56 games this season, and has a plus-9 rating.