If the joint is stable, then it’s ok to get things moving AFTER you’ve spend a day or so icing it. I’m going to assume it’s the right leg. Find a wall to stand near. Stand on your right leg(again switch if this is opposite). Take you left leg and reach about a foot in front of you, almost touch the ground (or tap). Then go in the opposite direction, so reach your left leg BEHIND you. Then take the left leg and reach about a foot or so to the left. Since you probably had an inversion sprain, I would limit how much you take the left leg to the right, which could cause the ankle to invert due to the to down reaction. Let me know if you want more! 🙂
Get the book Pain Free by Pete Egoscue and do the e-cise called Supine Groin Stretch and if possible put your foot in the Egoscue Tower to do it. Your ankle will heal 10x faster than normal! www.egoscue.com for more information also.