Osgood Schlatter’s Disease is a tough bell to unring one it starts.
Maybe wrapping with a little less tension on the band. If possible have 2 people wrapping the knees at the same time.
Work in pain free ranges.

Have you watched the episodes on this?
Diagnosis Series: Osgood-Schlatter Disease
Episode 323: Young Athlete MWod –Knee Pain & Osgood Schlatter’s
adult
Pro Episode #20 – Dealing With That Horror Show Bump On Your Knee/Osgood Schlatter

I have not had exposure to stem cell therapy for kids with OSD.