Of course with homeopathy, every case is so different, but homeopathy has helped us out so much in our family esp for DD bc she will not take any of my herbal ~brews~ like my DS will.
For a spasmodic cough, drosera works just fine, though not if strongly scented things are being used as well .
For coughing fits with vomiting, homeopathic ipecac is sometimes indicated...
That is only an example, i recomend any of Miranda Castro's books and Practical Homeopathy, by Vinton McCabe which has helped us so much.
I have been known to run downstairs in the mid of the night to grab my books. If you choose the right remedy then its almost immediate, if it is not right then nothing happensand if you keep throwing remedy after remedy into a person (little or big) then it can complicate their case.
IKeeping the neck warm is important and the warm , wet cloth(wool) wrapped with more wool , or a warm scarf helps for many people.
Herbally, i have to reccomend Planetary formulas Old Indian Cough Syrup it contains a great formula and ~I~ like the taste.....Elecampane, usnea, osha root are all in there.
I've gotta go. Intense whining in in its commencement stage ...Good Luck.