Thanks for writing to us.
From description it seems to be soft tissue injury
or ligament injury
You need an x-ray to rule out any bony injury(chip fracture
I suggest you to consult an orthopaedician nearby for a detailed examination. You may get the X-ray of the area affected under his/her guidance.
Beside icing and elevating it, you can take anti-inflammatory drug like motrin
to reduce pain and inflammation. Avoid lifting weight and rest well.
Hope this information helps you.
Wishing you good health...
Dr Saurabh Gupta.