Vardy picked up his third red card since the start of the 2015-16 season with a rash challenge which has resulted in a three-game ban.
“I think he needs to keep his character and fighting spirit because it's the most important thing for him," said Puel.
“After that he can play and be comfortable with the ball and he can score because in the beginning he has this aggression.
“Perhaps last week it was a bit too much but and too dynamic but we cannot change him and we don't want to change his character.
“I want him to continue like this."