Take Homoeopathic Medicine Rhus Tox 30. And ruta 30.

Apply ice... Take  rest... Do not move... Take Arnica 200- 4 times a day for 4 days

Take rest don't give pressure on affected leg. Put affected leg in warm salt water for 10 min 2times in a day. Do x ray if possible.

Take adequate rest Arnica. 30 5 drop bd Ruta 200 5drop mix in 1/4cup of water  For. 5days

Better take rest for atleast 15days. I think your foot sprained rest is compulsory. Massage it with warm oil it will reduce your pain. Consult me online for further treatment.

Rest prevents further injury and avoids stress on already inflamed tissue. Put the ankle joint at rest by wearing a brace or splint. Ice is probably the best treatment. Ice will counteract the increased blood flow to the injured area. It will reduce the swelling, redness, and warmth. Applied soon after the injury, ice will prevent much of the inflammation from happening. Compression can help keep down swelling. Compression wraps, such as ace bandages, do not provide much support to prevent movement of the ankle, and you should not apply them tightly. Elevation (keeping the injured area up as high as possible) will help the body absorb fluid that has leaked into the tissue. Ideally, prop the ankle up so that it is above the level of your heart. You can do this in a reclining chair.