Suggest Treatment For Sharp Pains In Right Ankle

Im a beach lifeguard, so i run in sand and on rocks and such. about a week ago, i started getting sharp pains in my right ankle every time i would go run on a contact. Well now, i cant touch it and everytime i run, i feel like its going to collapse, and the pain is still there. There is no swelling, and ive been trying to ice it.