Reports Saturday said Howard suffered a setback, but Phillies general manager Ruben Amaro Jr. said that is not the case.
Howard, however, has developed a seroma, from the stitches following his left Achilles surgery in October.
"We don't view that as a setback or affecting his rehab or anything like that," Amaro said. "He's doing real well. His strength is starting to come. He's doing more baseball activities. You saw him on the field take BP today."
Amaro said the appointment with Myerson was scheduled days ago.
Howard is expected back in camp Tuesday or Wednesday.
Todd Zolecki is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.