my boa just had her first shed with me, and shes beautiful now, it came off in two big pieces and three small ones, but i noticed she still has a tiny piece of shed stuck to the very end of her tail, on just those last scales. ive noticed shes been rubbing and pulling her tail over anything rough she can find and it seems to be driving her crazy, and cant seem to get the skin to grip on anything to pull it off, any ideas of what to do? should i try the pillow case and towel method?