<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, about 2 months I got a complicated injury with a rock being flung from a lawn mower and puncturing my leg creating a hole, it got infected and had to do packing. It finally healed up and there is still an indent, but there is a bump at the top of the injury. What is the bump? it doesnt look like a bruise.  <response>: Cellophane You for contacting Chat Doctor. The swelling bump can be due to accumulation of blood or pus. Does it hurt on touching or if overlying skin is hot? I would suggest you following things: Always keep it clean Wash hands before and after touching it. Apply poly fax plus ointment over it three times a report to hospital if: Condition remain same after 2-3 days Any unusual symptom appears Condition deteriorates. Hope this answers your question. If you have additional questions or follow-up questions then please do not hesitate in writing to us. Wishing you good health. 