This treatment is being suggested on bases of the information provided. However I would like to examine & investigate you  in detail. Control  Hypertension, Diabetes or any other metabolic disorder, if there is  any. Any way it may be tried, --. Dolokind Plus (Mankind) [Aceclofenac100 mg +Paracetamol 350 mg] 1 tab. OD & SOS. X 5 days. --. Caldikind plus  (Mankind) 1 tab OD x 10 days. (You may need help of your local doctor to get these medicines.) --. Fomentation with warm water. Let the part not be exposed to cold. --. Sleep on a hard bed with soft bedding. --. Use no pillow under the head. --. Avoid painful acts & activities. -- .Do mild exercises for  foot and ankle. --.(Take help of a  physiotherapist). --Do not ignore, let it not become beginning of a major problem. --Do ask for a detailed treatment plan. Kindly make sure, there is no allergy to any of these medicines. --For emergency treatment visit nearest hospital. --Wish you a quick recovery & good health. --I hope, I have solved your problem to your satisfaction.  Dr N C Gupta MS (ortho)

Any ligament injuries take 3 to 6 weeks to heal. And further 3 to 6 weeks to rehabilitate. Since it is a weight bearing joint takes some time to heal.. so after this time period can have an MRI scan and surgical procedure if needed .however return to active sports particularly competitive level takes at least 3 months before you start practicing

Need clinical discussion

MRI is not really required as I would not suspect a major ligament injury or an occult fracture not visible on plain x-ray. Ligament injuries take time to heal, give it a minimum of 3 weeks rest.