Hi. I'm an AU teacher with a student who has a new habit (past 2 weeks) of holding his saliva in his mouth. He hovers over the garbage when we bring him to the garbage. I have tried to use reward items and activities he typically loves but he does not budge when it comes to this. I have read that this can affect children's teeth and after the child coughed last week, it went all over everything and everyone. I have contacted home but his guardian is lost and desperate to change the behavior.

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