I am a new wound care nurse and am in need of some help with a new patient. 100 yr old lady with unstageable ulcer on sacrum, measures about 4x2x2. Wound bed is 80% slough. She has undermining of 6cm from 5:00 to 9:00. No infection. Copious drainage. I was doing santyl to slough and packing it with aquacel. The undermining is just getting larger. Wound vac not an option. Any ideas on dressing choices? FYI, she doesn't take in much orally and feeding tube not an option for nutrition. I can order just about any wound dressing. I'm just having a hard time deciding the best way to pack this wound. Any help would be appreciated!