can the removal of lymphnodes on both sides of the neck contribute to swelling during the healing process? my father had his surgery about 4 months ago and still experiences some swelling in his face and chin.. sometimes accompanied by redness.. thank you!

Dad-55 yrs..2/2010-DX/March 2010-Induction Chemo/35Rads 7weeks concurrent with chemo once every 3weeks/6/2010-Treatments completed-October 2010-Recurrence/December 2010-salvage surgery/clear Margins/July 2011-recurrence/weekly Erbitux treatments-5/30/12, last erbitux..
Painfree and rested 6/19/12