Hi
The bruising and swelling is normal and common with ankle sprains, I also wouldn't worry too much about the tingling but this does indicate some nerve involvement. With regards to treatment rest, ice and compression is needed. If the swelling is persistant perhaps try contrast bathing, you may find this uncomfortable but it works really well (I'm sure Heidi has a page on the website of how to do this). Sports massage to the calfs will encourage the swelling to reduce as well. If you don't see any improvement over the next couple of weeks then I would see a Physio or Sports Therapist.
With regards to prevention you will need to properly strengthen the ankle and work on improving proprioception, again I'm sure there will be a web page on this site with exercises to help achieve this. Maybe consider using an ankle brace to offer added support when running.
Regards,
Alex
[CENTER][I]Alex Dexter BSc (Hons) MSST
Graduate Sports Therapist[/I][/CENTER]