I have recently been trying to find research to back up the use of phonophorsesis. I am not having much luck. Most research was done on animals only or was carried out 20-40 years ago. Of the more recent research 2 studies suggest that ultrasound with 10% hydrocortisone does not result in penetration of cortisol to either the blood plasma or muscle tissue.
So why do we use it??
any input??
g