OK..I was able to click on the picture and I think I see the problem. Is the seam coming undone and a bit of the white is fraying? If that is the problem, I think I would slip stitch the seam closed by hand. Then I would get some fray check or fabric glue and tuck the frayed threads under with a toothpick. If you hold it down with tweezers or something , you can hold it in place a few mins until it sets. I will look at the picture again and see if I can see anything else.