Last night we had our first cough free night in over 3 months, although she woke up coughing at 7am. I am hoping for the same tonight but I will not hold my breath. Someone suggested that we try a hayfever medication as it may be that she is congested in the sinuses and that this is dripping down her throat while she sleeps, causing her to cough. We picked up Infant Zyrtec from the chemist and gave it to her twice yesterday, so may be this is the reason why she didn't cough. I am hoping that we may have found the answer, but I will certainly keep you posted. Let me know how you go. I am glad we are not the only ones!