Dd is 8 and has had a dry cough since the weekend. She has had hardly any sleep for the past few nights thanks to it. She went to bed at 8 and is still awake coughing her heart out, she has even made herself sick tonight. So far, we've tried honey, buttercup and Vicks on the bottoms of her feet but no luck. Does anyone have any ideas? She's so tired and just wants to go to sleep but she can't 