Does this exist? My daughter out of no where has a cough. She only coughs when she is asleep or when she is crying, so less than 10 coughs a day. I think it is from all the extra drool from teething. She has no other cold symptoms. Has this happened to your kid?
Mine has done this too. Sometimes she will cough while nursing if she gets really sleepy. I'm guessing the milk/drool might go down the wrong pipe and irritate her throat?