I believe tht it's okay to let your LO suck thumb. the more you want to stop her, the more she will do it. kids are cheeky like this. just let her be, and try to switch her attention from sucking thumb to something else. don't encourage her to suck and don't stop her too. my girl. will eat her fingers, I just try to shift her attention like giving her her handkerchief or play with her. it's better thn keep pulling her fingers out of her mouth.
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