The 27-year-old Sweden international admitted he left the pitch at Aston Villa last Monday evening suffering the same emotions as the travelling fans who witnessed the 6-1 horror show.
Asked how they ensured a black night in the Midlands represented nothing more than a blip, Larsson said: "By making sure you feel that pain and how bad it feels.
"As for the fans, we probably feel the same. It's that sickening feeling and embarrassing feeling.
"It is embarrassing to lose 6-1, and we have got to use that. We have gone through the game very clearly and we have got to focus really hard and make sure we come out fighting.
"It's got to hurt a lot after a performance like this - and it does, trust me - but we have also got to remember the positives, what we had done in the previous weeks and what we can do and how solid we were.
"We looked very good and there's no reason why we can't get back to that. We have got to try to focus on our own performance.
"Yes, you do know how many points, you look for other scores, but at the end of the day, we have got it in our own hands to get to where we want to get to and if we do that, we don't have to worry about the rest."