<s>[INST] Hi, I got hit with a baseball on the inner part of my arm just above the elbow. It was black and blue and slightly swollen. Now the swelling went down and I noticed a small lump on the inner part of the elbow slightly smaller than a dime. The elbow still hurts slightly when I play baseball. This happened 10 days ago. [/INST] Hi, dear. I have gone through your question. I can understand your concern. You have clear history of trauma.  So you may have some hematoma formation in that area.  You should take anti-inflammatory plus analgesic Chat Doctor.  You can also apply ice on it. Wait for few days.  If it is not cured then consult your doctor and go for further investigation. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health. </s>