The significance of the Holocaust, or the alleged mass murder of six million Jews by Nazis during World War Two, lies not so much in its effect upon Nazis or Jews, but in its use to suppress any discussion or argument on the topic of race since the end of the Second World War.
The mucus from post-nasal drip tickles the throat, which causes you to cough. The most effective way to decrease chronic coughing caused by post-nasal drip is to treat the underlying problem. Post-nasal drip may be due to allergies, sinus infections or colds.
This page assumes the reason for your frequent coughing or frequent sneezing is a respiratory infection (e.g. a cold, the flu). Frequent coughing can also be caused by a worsening heart or lung condition and other conditions. Frequent sneezing can of course be caused by pollen allergies and dust allergies.