My experience is similiar to David's: It takes a long time to fully recover.
Make no mistake: This is a serious injury. PF has destroyed the competitive
careers of some runners, for example Benji Durden. It appears that recovery
will occur in almost all cases--if you are patient enough. A couple of places
to look:
drpribut.comheelhtm.htmOpen ↗
heelspurs.comheelspurs.comOpen ↗
I took 2 months off from training last fall (I would
normally take 1 month off). This allowed the PF to heal
enough that I could compete in the indoor season (pure
sprinting, about the worst thing you can do with PF). I've
done lots of fast training since (in sprint spikes) and
during this period, the PF has gradually gone away, so that
now, 1 year later, it is effectively gone. You can try the
splints, stretching, and such, but from what I can see, the
most effective recovery activities (in order) are:
(1) time off (no running)
(2) time off your feet (either cut back mileage or cut
back other time on your feet on days that you run)
(3) walking around in shoes with high heels (or
heel cups)
You probably need to adjust your race calendar so that you
have a period of reduced (or no) training to give your heels
time to recover.
People who got PF due to pronation need to get orthotics, or
learn to stop heel striking. People who are overweight need
to lose weight.
Lyndon
"Speed Kills...It kills those that don't have it!" --US
Olympic Track Coach Brooks Johnson