<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hello. I have a hard lump above my left collar bone. It is the size of a dried apricot and I first noticed it about 3 weeks ago. Also, the entire left side of my neck became swollen and has stayed swollen for the past 3 days. I am 30, female, 130 lbs, healthy except allergies and asthma. What type of doctor do I need to see? Thank you.  <response>: Welcome to Chat Doctor .1. It could be a lymph node thyroid mass lipomas.2. In this case I would examine first and ask for an ultrasound neck get done - to find out the origin of the lesion its extensions lump contents.3. Lymph nodal enlargement is seen in case of underlying infection inflammation systemic diseases malignancies.4. Recommend you to get an appointment to see your doctor and let examined and do what is necessary action.5. Get an ultrasound - its non-invasive, instant report, cheap. Hope it helps you. Wish you a good health. Anything to ask ? Do not hesitate. Thank you. 