Rovers are one of five clubs in serious danger and face Manchester City at home on Monday with Roberto Mancini's side hunting victory to keep them in a Champions League spot.
Blackburn midfielder Dunn insists his and others' experience of previous relegation battles will stand the club in good stead.
Dunn said: "Quite a few of us have been in this before and we know what it takes. I've been down here before and it's a real fight.
"There are going to be a lot of pressures and we need a lot of bottle out there on the pitch - not just running around fighting and kicking people, but when we get the ball we need to move around and show a lot of bottle when we have got it.
"It's not just our club in that fight - there are several clubs down there that are in it. We are aware of the situation and the negativity around the place, but it's up to us to go out there and get some points."
Source: PA
Source: PA