Lampard, who has been a recent victim of England boo-boys, is taking injections because of a broken toe.
"He doesn't miss a day of training, he will keep playing and training - he is a fantastic professional and a world-class player."
Midfielder Lampard has been singled out for criticism by some England fans during some of the team's recent below-par displays but Terry has urged them to get behind his Blues team-mate.
"I would hope they lay off him. He got targeted from them for some bad performances from everyone," added Terry. "He took the brunt and that's unfair.
"It is a privilege to play with him for England and Chelsea and he is an example for all younger players."