I don't think being in the house is necessary, unless that makes it way easier for you to treat her. At this point, I think the wound is too dry, and would really benefit from some triple antibiotic ointment or similar, to keep it moist. I would clean out that pocket as best you can, one more time, then pack it with the ointment. That will create a bit of a barrier, so more dirt can't get in. At least until she takes her next dust bath

Like others have advised, keep applying the ointment 2-3 times per day, and she should start to heal up in no time.