My son also sucks thumbs this is their way of coping with stress . I tried every thing but I think the only way to get rid of this habit is to divert him and engage him but for that he is too small .make sure his hands are always clean and he will leave this habit with time <u>infact</u> only peer pressure from his friends will help him to leave this habit .so don't take much stress and leave on time .

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