your history is suggestive of Ligament injury. Get an MRI of affected knee and follow up with Orthopedic Surgeon.

This treatment is being on bases of the information provided.  However I would like to examine & investigate you  in detail. -Control  Hypertension, Diabetes or  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. --. Keep a pillow under the knee. --. Avoid painful acts & activities. -- .Do mild exercises for the lower limbs. --.(Take help of physiotherapist or you can visit my you tube channel Dr NC Gupta.)   & see  me and my yoga; & yoga simplified. Kindly subscribe to the channel to get notifications for further new information of your interest.  --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) DMC 3624  

Mild Osteoarthritis changes are there. It would be better to get a knee MRI for better picture. At your age its imperative to avoid OA knee progression. Once you get the MRI then please consult a pain management specialist who can provide you long term solution.

OA knee medial compartment Do knee strengthening exercises and physio Brace oa knee brace

Looking at the Xray and considering the history its strongly suggestive of associated ligament injury along with Meniscus injury. Please get a 3 Tesla MRI scan done of the affected knee. Mean while use HINGED KNEE BRACE while walking, standing and climbing. Ice fomentation. Avoid strenuous activities. Weight reduction if overweight. Avoid sitting cross legged, squatting, climbing stairs, jumping, jogging and running. Can do swimming, walking in waist deep water pool, static cycling.

Need physical examination