Lymph node after deep plane facelift

I had deep plane facelift in January and swelling is getting worse instead of better, specially in my right neck. I always had swelling since day 1st in my right and some pain at night that supposed to be normal. My general doctor sent me an ultrasound to check my neck glands and the results indicates: at level 2 in the right neck there is a prominent lymph node measuring 2.8*0.7*1.6cm. This retain fatty hilum. There is not cortical thickening. What do you think about it ?