Hello, my girlfriend is 31 years old, 5 feet 6 inches, and 125 lbs.  She discovered a lump on her arm two days ago.  The lump is underneath her skin, toward the inner bicep and just above her elbow.  At first it was painful when pressed and has become more tender since.  Over the past two days it seems to have grown and is now about 1/3 the size of a golf ball.  It is red and does not move.  Any idea what this might be?  Thank you.
Hi, Dear,Good Evening from INDIA. Thanks for the query to Chat Doctor. I went through all the details of your query. On the details given by your query, In my opinion you suffer mostly from-though the information given in your query is less-on the facts there in-mostly you suffer from-lump with a bug bite mostly, as its red and non-movable. Treatment suggested would be-a-Tab NSAIDs x 5 days b-Cold compressesc-Tab Antihistamines Chat Doctor.