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saliva (suh-LYE-vuh)—the watery liquid in your mouth.
steroids (STAIR-oydz)—a medicine that is a pill, liquid, spray you breathe in, or shot to help stop croup. It cuts down inflammation.
stridor (STRYE-dur)—a high whistling sound when your child breathes in. It is caused by something blocking the throat or voice box.