I found this informative article that may be of some help...

https://utswmed.org/medblog/dupuytrens-contracture-treatment/

I also see there is a wand that can be used in the early stages...I did not find any treatments in my alternative medicine books...it appears to be strictly a physical impairment that needs to be corrected. Good luck to your friend...tell him to read, read all he can about the disorder and its' treatments...he may be surprised at what he finds...the Lord has never failed me in letting me know what to do for any health issue...and you can bet He has all the answers...

I found this informative article that may be of some help...

https://utswmed.org/medblog/dupuytrens-contracture-treatment/

I also see there is a wand that can be used in the early stages...I did not find any treatments in my alternative medicine books...it appears to be strictly a physical impairment that needs to be corrected. Good luck to your friend...tell him to read, read all he can about the disorder and its' treatments...he may be surprolised at what he finds...the Lord has never failed me in letting me know what to do for any health issue...and you can bet He has all the answers...