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,
Sinus headaches are the result of swelling, inflammation or infection in one or some of the sinuses in your head. Many sinus headaches exhibit the same symptoms as tension headaches or migraines, but often have additional symptoms such as congestion, cough, sore throat, fatigue, or nasal discharge. They can be triggered by allergies, pressure changes in the ear, tooth infection, a cold, a bacterial sinus infection, or sinusitis.