Hi, my puppy had an op 8 days ago and has some disolving stitches, each time I take the cone off her head she licks the area constantly. when is it safe for the collar to come off? when the stitches are completely gone? I'm sure it must be healed now, it looks great but I can just see the edge of a stitch still in place. She's completely miserable with this cone on her head. Thank you