Coughing. Unless you smoking regularly, whatever duration you coughing, it should be taken as a pretty great note that you are not well. As a result, we observe mucus and uptime congestion, which is working its way through the throat if the person with a sinus infection. The patient will not cough unless some mucus makes its way into the throat. Otherwise, when it occurs and substances of inflammation come down, the scratching inside feeling can appear.