bìng cóng kǒu rù , huò cóng kǒu chū 
		Illness enters by the mouth, trouble comes out by the mouth (idiom). A loose tongue may cause a lot of trouble.
		 
		
		
														
		
		
			 
		
				
		
			bìng cóng kǒu rù , huò cóng kǒu chū 
		Illness enters by the mouth, trouble comes out by the mouth (idiom). A loose tongue may cause a lot of trouble.