5 1/2 Days Post Op Extraction And Bone Graft. Terrible

5 1/2 days post op extraction and bone graft. terrible odor and taste, bitter, putrid and sometimes chemical. It is smelling up a small room. Under the stitches it has looked yellow and soggy since day 2 -was gray before that. Stitches are not red. Had a membrane placed initially. Pain is nagging and itchy feeling- still need Tylenol every 4 hours.