Persistent wet cough / Postnasal drip
 If you are troubled with constant phlegm or wet cough, you most likely have inflammation at any part of this zone. When the inflammation is effectively treated with medicated gauze, the post nasal drip or phlegm will be reduced and the cough will gradually cease. The longer the symptom was left untreated, the longer the healing will take. 

Headache
If you are troubled with constant or sporadic headaches, you may have inflammation at any part of this zone. Once the inflammation is effectively treated with medicated gauze, the pain will be reduced or stopped. To  reach the superior and middle conchae, patient treatment is required as many layers of inflamed membrane need to be healed.

Losing sense of smell
 If your sense of smell is diminished, you most likely have inflammation at any part of this zone. Treat the inflammation with properly medicated gauze, and the sense of smell will be recovered. The treatment will undo the clogging which narrowed the nasal cavity. It will require patience and perseverance, but the result is guaranteed by the users who had done the right treatment.