|photo source http://orthoinfo.aaos.org/topic.cfm?topic=a00149|
Usually you treat it with NSAIDS (eg advil/alleve/aspirin) and stretching, also shoe inserts to keep the arch from falling. Some people say to use splints, but I could never get people to actually keep using them.
Now they suggest ultrasound might help those with this nasty painful but not serious cause of heel pain.
I used to give a lot of cortisone shots for this (on "the res" where I worked, to get ultrasound treatment took making a request via the tribal health board, since we didn't have the machine...and since this treatment was not urgent, often it didn't get funded).
usually I warned the patient that the shot was very painful: enough to make strong men cry.
And they agreed with me.
But usually it did help the pain