hello again, for the past few days my dad has swelled up once again.. his whole face, lip and now today under his eyes.. his pain is under control.. when he swells up his pain level does not go up.. so confused! has anyone experienced anything like this?

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