Bolasie is going through some good form after his return from injury. He completed the full game in the 1-1 draw against Swansea City. It was his fifth successive start since returning to the squad.
"Yannick is another player who has been disrupted with his injures and such a long layoff," Baines told evertontv.
"When you have that type of injury it is always going to take you a bit of time to get back up and running and get your legs back under you.
"He has started to do that and is someone I know, that if I give him the ball, I just have to support him from behind. He is good to play with. He is always a threat for us and keeps the opposition full-backs busy.
"Yes [Bolasie's confidence is rising]. He has had a few good performances, set up a few goals and scored as well.
"That will give him confidence and he has started to show that on the pitch with the positivity in his play. That is the type of player he is. He is someone you have to allow to go and express himself. If you tried to stifle him it would take so much away from his game, so you just have to let him go and play."