To stop persistent cough

Treatment:
To stop night time coughing in a child (or an adult, as! we found out personally),
put Vicks Vapor Rub generously on the bottom of the feet
at bedtime and then cover with socks.

Even persistent, heavy, deep coughing will stop in about five minutes and stay stopped for many, many hours of relief. This works 100 percent of the time, and is more effective in children than even very strong prescription cough medicines. 

In addition it is extremely soothing and comforting and they will sleep soundly. I heard the head of the Canada Research Council describe these findings on the part of their scientists when they were investigating the effectiveness and usage of prescription cough medicines in children, as compared to alternative therapies like acupressure.  It was a surprising finding and found to be more effective than prescribed medicines for children at bedtime, and in addition to have a soothing and calming effect on sick children who then went on to sleep soundly.