Hi, thanks for writing to HCM.
Based on the description, You could have suffered a soft tissue contusion
This is not a serious condition and is self limiting. It will resolve spontaneously within 1-2 weeks.
Please follow the RICE regime -
* Rest to the injured part and avoid any movement the produces pain
* Ice packing once in 2 hours over the injured area
* Elastic compression bandage around the swollen area
* Elevation of the injured limb to lessen the swelling
antiinflammatory medicines as needed
If your symptoms are not improving with the above measures, consult your family physician.
Hope this information is helpful. Good day