hi, dad had surgery 6weeks ago.. he had the jawsplit.. at about 5am this morning he had some leaking from the incision under his chin...he was extremely freaked out! has anyone experienced this?

thanks

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