Conversation: The conversation between human and AI assistant.
[|Human|] I had a blood draw at 9 am. About 20 min later on my way to work I started to feel a little bit queasy. I pulled e car over and looked at me arm. At the sight of injection there was a marble like lump near injection site. It has been painful all day but had not changed in size and still not much change. Is this normal, because I have never had anything like this
[|AI|]  From the history it appears to be a hematoma to me. Hematoma means collection of blood... Iam not sure how long you gave compression at the injection site after they Chat Doctor. . But nothing to worry.... Hematoma usually gets absorbed in 3 to 4 days. If its painful u can keep a cloth soaked in hot water on the lump.it gives a better pain relief.I hope I have answered your queries.have a good day.