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,
Symptoms of a sinus infection, or sinusitis, can include: 1  Nasal congestion. 2  Thick nasal drainage (white, yellowish, greenish or blood-tinged) 3  Post-nasal drip (mucus draining in the back of the throat)  Pain in the teeth or near the nose that is worse when bending 1  forward. Earache. 2  Fever. 3  Cough. Sore  throat.