I canât itch and dissect a frog at the same time. My first memory of the prolonged itching sensation on my arms and neck was during a summer school biology course when I was 14 years old. The distraction of constantly wanting to scratch while trying to focus on cutting up a frog was pure torture.
1 Chronic sinusitis lasts longer than eight weeks or occurs more than four times per year, with symptoms usually lasting more than 20 days. 2  Sinusitis can be caused by viruses, allergens, pollutants, bacteria, and fungi. 3  Symptoms of sinusitis include. 4  runny or stuffy nose,  postnasal drip,
Other symptoms of a chronic sinus infection may include pain or pressure in the facial bones, difficulty breathing due to sinus congestion, nausea, sore throat, post-nasal drip, green or yellow mucus in the nose, cough, bad breath, fatigue and pain in the teeth, ear or upper jaw.