Advise them to call an ambulance if the child is very pale, blue, or grey (includes blue lips) for more than a few seconds, is unusually sleepy or is not responding, is having a lot of trouble breathing (e.g., the belly is sinking in while breathing, or the skin between the ribs or over the windpipe is pulling in with each breath; the nostrils may also be flaring in and out), is upset (agitated or restless) while struggling to breathe and cannot be calmed down quickly, if they want to sit instead of lie down, and/or if they cannot talk, are drooling, or having trouble swallowing.