In reply to RobertHepburn:
I knackered my ankle a few years ago (tore pretty much everything in there and was on crutches for 3 weeks etc.) and the first thing I'll say is that all is not lost! I would say both my ankles are now stronger than they were before.
Keep your ankle mobile, that doesn't necessarily mean weight bearing, but try to flex it as much as possible without any resistance or with if it is strong enough.
If you have scar tissue build up massage can be really helpful (although f*****g painful!).
Definitely worth seeing a physio and making sure there's nothing unusual going on.
Ice baths for 12 minutes at a time.
Lots of strengthening exercises, it's worth investing in a hedgehog or wobble board and some therabands. Do a search on the other channel for ankle injuries and exercises, it gets discussed on there on a regular basis.
Good luck!