A dry cough is a type of cough that doesn't produce any sputum or phlegm. Such type of cough is common when you develop a viral infection of the nose or throat. It feels as if something's stuck in the throat and you cannot get it out even with continuous coughing. A dry, hacking cough may also be the outcome of an exposure to allergens and dusty environments. A random tickle at the back of your throat will also lead to dry cough. Whatever the cause, you can always make use of certain home remedies for dry cough to improve your condition.