<s>[INST] Hi, I am a 58 year female with several health issues,pph,diabetic,thyroid,osteoarthritis,djd,pagent of bone,htn,chf,sleep apenea,anemia,I have had 3 blood transfusions,and several iron transfusions.I have chronic sinus problems.My concern is a large lump behind my left ear going across to my right side also.I have had this lump at least 1 year,my pcp looked at it and sent me to an allergy specialist.He said i had small sinuses.I have pain and numbness,I stay nauseaed all the time,I have headaches,and my left eye is affected.What doctor do I need to see. [/INST] Hi, dairy have gone through your question. I can understand your concern. You may have some enlarged lymph node, benign cyst like sebaceous cyst or some soft tissue tumor.  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>