Hi, thanks for writing to HCM.
From the description, it seems that you have developed a soft tissue hematoma
( blood clot ) at the site of injury
Generally, this resolves spontaneously within 3 weeks (maximum).
But in case if you are a Diabetic person or if the size of the swelling is increasing (despite hot fomentation) with associated fever and severe pain
, then there is likelihood of infection.
Consult your treating doctor in such a case.
Hope this information is helpful. Good day