Conversation: The conversation between human and AI assistant.
[|Human|] Hi I noticed 1 week ago a red hard lump on my right leg 3 inches above the ankle.  It seems to have gotten slightly bigger, there is no pain, itchiness, irritation or tenderness.  It actually looks like a large allergic reation without the side effects.
[|AI|]  Hello! Thank you for the query. It might be an allergic reaction if you have been bitten by a bug for example. It may be also an infection due to some injury, varicose vein. Varicose vein usually gets larger when standing and less visible when the leg is rose. It is soft to the touch and usually painless. As it is very hard to give precise answer not being able to see it, I suggest you to consult dermatologist with this issue. Hope this will help. Regards.