<s>[INST] hi i found a small round lump in the front of my neck on the left hand side just above the collar bone. the doctor asked me to move my head from side to side and said its just a strain . How long does it take for the lump to disappear and should I get it checked out again if it doesnt go ? Thank you [/INST] Hi,It seems that there might be having enlarged supra clavicular lymph node producing this lump.It shows that there might be having some infection in surrounding area.nothing to worry if it is not painful or further increase in side.Gradually it will be subsided.Ok and take care. </s>