Hi doctor, I am facing a recurring lump issue in my left axilla for 5 months. It is very strange. It comes all off sudden, stay for few hours like 3-4 hour and then goes off. It feels hard when it comes. I have done my axilla ultrasound and here is the report" few small volume oval axillary lymph node with preserved fatty hilum noted on both sides - nonspecific. Largest measuring on the right side 20*5.5 mm and on left side 11.5*5.5" impression: no significant abnormality detected is size of lymp note concerning? The issue is at the left side.