Conversation: The conversation between human and AI assistant.
[|Human|] I have a bump that hurts on the back of my head about five inches from my right ear on my scalp. This bump tends to appear for about 4-5 days at a time and then disappears and reappears weeks later.  Should I be concerned. The bump hurts when I press on it and will occasionally hurt even when I am not touching it.
[|AI|]  Hello! Thank you for the query. This lump can be a lymph node which appears due to some regional infection (like ear infection, tooth infection, throat infection). As the infection disappears, it may get smaller and grow back when the infection reappears. I suggest you to consult palynologist with this issue to see you ears and throat and dentist for teeth checkup. Next time this lump will appear, please have an ultrasound of it. Hope this will help. Regards.