The 25-year-old has played 63 matches since the beginning of last season, which includes seven matches at the World Cup where England finished fourth.
"Harry has played a lot of games, but I will analyse it," said Puel.
"To participate in a competition like the World Cup is tough to come back with good focus and freshness and concentration, this is a common thing.
"But if I rest him for this game and we lose, I know I will be criticised.
"But it is important to keep players fresh and we must have a good focus about this. Players need to have some protection."
Leicester are 11th in the Premier League, having been beaten 4-2 at Bournemouth on Saturday. Puel urged his players to respond to the defeat with courage.
"Of course at the end of the game there was a lot of disappointment," he added. "We wasted good play because we had a good first half. We conceded two goals too easily and it's not good for us.
"We had chances before to score and it was a frustration but now it is behind us and we want to have a good attitude and a good response in our next game."