My posts on different treatment options are shown below:

Treatments  - My summary of several of the treatments. I have also made this into a video here

Steroid Injections in detail - Feel free to ask me any questions about my experience with this.

Orthotics in Detail - Feel free to ask me any questions about my experiences with this

Cryosurgery - I do not have any experience with this but I have tried to cover it as best I can.

Radiation Treatment for Ledderhose - Also see the interview page for many good experiences with this.

Surgery - also see the interviews with patients on the interview page.

Verapamil Gel - Not sure I could recommend this but the page is here if you want a look.

Shockwave ESWT and here- Still early stages but this study at least looks promising

A lot of people might find that the interviews are easier to read, note that they are just one persons opinion and how one person reacts to the treatment and that everyone is different.