Carmelo Anthony has gone from Mr. April to Mr. Ailing. Anthony was held out of the contact portion of practice Wednesday to rest his strained/bruised right shoulder, but he got up shots during the conditioning portion. The Knicks are hoping the four days off for Anthony will allow his shoulder to heal enough to where he can be more effective Friday in Toronto. Anthony said his back-to-back poor outings against Washington and Miami were because of the “uncomfortable’’ feeling in his right shoulder. Anthony, who has won the Eastern Conference’s Player of the Month the last two Aprils, is losing some of his April mojo. He committed nine turnovers and scored a season-low 10 points in Friday’s loss against the Wizards. He scored 13 points and declined to take a shot in the fourth quarter in Sunday’s defeat in Miami because he said he felt his arm go “dead.” He’s shot 9-of-31 in the two games, though a handful of his shots were inside the cylinder before rimming out. Coach Mike Woodson said Anthony has not had an MRI exam. “If you ever been a shooter, if it’s tough to raise you r shooting arm, it’s tough,’’ Woodson said. “Only Melo knows the severity of his pain. All I can do is put him in the best position possible. If he tells me he’s hurt and can’t play, it’s my job to sit him. I don’t know if he’ll ever tell me that.’’ The season-long grind has had an effect on Anthony, who is averaging 38.9 minutes per game. Anthony hurt his shoulder against the Nets last week, though he didn’t say a word about it until after his Washington debacle.