The 28 year old joined from Rangers last summer but missed pre-season as he recovered from a double hernia operation.
The Northern Ireland international, said: "It's been frustrating, I joined the club on the back of a double hernia operation.
"I missed pre season, and I've started games where, to be honest, I wasn't 100 per cent right. The team's been doing well since, and I've just got to try and get back in."
Davis can see encouraging signs in Saints' recent performances and they have collected 17 points from their last 11 games to move out of the Barclays Premier League bottom three.
He said: "We had a really difficult start to the league in terms of fixtures.
"After the initial period, we've judged it well and there's a maturity about us and a consistency. We've managed to keep going and we have another difficult run of fixtures coming up.
"If we keep giving our all every game and, showing the right blend between defence and attacking play, then we'll keep picking up points."