Luis Suarez's bite on Branislav Ivanovic ensured the club were in the spotlight all week and Henderson was happy to see them put all the bad news behind them with an impressive 6-0 rout.
"It was important that we finished the week on a high," said Henderson, who bagged a brace at St James' Park.
"It was a bit chaotic during the week with the whole situation going on. But the players handled it brilliantly and we put on a great performance.
"We were at them straight from the off and we scored some good goals so we are over the moon.
"We've got a lot of good players here and now we just want to keep winning and hopefully finish the season on a high.
"I still feel I can improve in some areas but I'm enjoying my football at the moment.
"I've just got to keep working hard and just keep doing what I'm doing and help the team do well.
"It's always nice to score goals and to score at St James' makes it that little bit sweeter. Hopefully I can carry on doing that now.
"It was a brilliant pass from Daniel to find me for my first goal. When you are through one-on-one you might think you will shoot yourself but he saw I was in a better position and he gave me the tap in.
"It was nice to repay him with a similar situation in the second half when Daniel scored."