I ride 20 miles/day. Have no idea how I sprained it -- I think it's the first time I've had a sprained ankle. It must not be too bad because I rode 20 miles today and also walked about 5 miles on it (it's definitely sore and swollen, but I was able to walk around today without too much trouble, and rode.)

Do I have to stop riding? (can I just stop walking for a while?)

I'm not a big fan of meds (not even advil) not sure I'll see a doc. not sure what they could do besides tell me to ice it.