HI,Dear,Thanks for your query to HCM virtual Clinic. I studied your query in all the details put forth by you. I understood your health concerns about the hard collarbone lump. Treatment for Cause about the hard collarbone lumps- The facts of your query indicates that you had a which your Gp could not locate, but lately causing tiredness with terrible back ache and chest aching pains and with neck ache. All these symptoms indicate that you might be a case of chronic infection- such as TB Lymphadenitis / Lymphadenitis (NHL or HL)with rising systemic complaints of aches and pains of body parts lately . and with progressive growing up of its systemic toxic / rhuematic effects, I would suggest to Consult PCP or ER Physician to do ESR and Complete Blood Tests. and to rule out other causes of systemic complaints with the hidden subcutaneous collar bone lump. Primary Treatment- Hot fomentation/ Infra red lam radiation of the collar bone, With Anti-inflammatory for few days. If no relief add Antibiotics, under cover of your family/treating doctor ONLY. As many other causes need to be ruled out by Second opinion from ER Surgeon /Physician or family doctor and hence I would suggest your doctor s Second Opinion, If need be your doctor would plan for you permanent cure option by- -Surgical Excision with HPR Biopsy of the lump(to rule out NHL or HL -start of Hodgekin s Lymphoma-which is least possibility unless proved by HPR)would confirm the cause of it and your doctor would plan its treatment according to its cause if need be. Hope this reply would satisfy your query and would resolve the worry with it. If you feel satisfied with this reply,don t forget to hit thanks and write excellent review comments,which would improve my rating for new needy visitors to HCM. Welcome for any further query in this regard to HCM. Have a good day. With Regards, Dr.Savaskar M.N. M.S.Genl-CVTS, Senior Surgical Specialist