Hiya...my little girl never had a dummy or sucked thumb until our second came along.not so easy to stick to your principles then so caved...he had it for 2weeks then gave it up.my daughter however tried to have dummy but got rid and she popped her thumb in.it seems to have been there ever since!!tried painting thumb will anti bite varnish but no luck.i searched for a book or anything on net but nothing.i will confess it is a huge pet hate of mine and am slowly driving us both mad saying take it out! I havent seen any other childrebut her age (2 1/2) doin it either!any tips or advice would be amazing!! Thanks x