<s>[INST] I have a small bump in the skull bone about an inch directly above the top of my ear, it is quite painful to the touch. It had appeared a few weeks ago, then disappeared for a week or so and is now back. I have no associated headaches, nausea or anything [/INST] Hi, dairy have gone through your question. I can understand your concern. You may have some enlarged lymph node due to reactive hyperplasia as a result of infection or skin adnexal lesion.  You should take a course of antibiotics. If it doesn't respond to treatment then biopsy diagnosis is advisable. Consult your doctor and take treatment accordingly. 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>