today i got a note from school that my 4 year old is spitting on the floar , i did notice since few days ago after he was sick hes been spitting and i tried taking to him every time he do it so he know is bad to spit, but he continues to do it. dont know what to do, he doesnt have any more problems in his behavior , i do notice that he do it if he get like to much saliva in his mouth and he doesnt swallow it. im really worry.