What is a cure for dry cough?

Home remedies such as honey soothe the lining of the tissues at the back of the throat.
Conventional medicines such as cough suppressants reduce the activity of the cough reflex. These may be prescribed by your doctor or available without a prescription from a pharmacy

Herbal remedies such as extracts of spruce or pine shoots are ideal for treating dry and tickly coughs coming from the throat
Herbs such as Mullein and Marshmallow to treat dry cough coming from both the throat and deeper down in the chest