It worked! I gave Emily grape juice with honey three times yesterday, and I think she coughed the same number of times the entire day.  AH, peace!  Last night I coated the soles of her feet with Vicks VapoRub (thanks Michelle!) and we did not hear even one cough last night.  I am so thankful.  Emily got some sleep, and so did the rest of us!  Thank the Lord for simple things.