The nasal cavity consists of three turbinates, or fine hairs, that act as a fliter for pollutants, as well as a bone and cartilage divider called the septum. Turbinates work to cool or warm the air inhaled through the nose in order to reach body temperature through humidification. Concha bullosa is a small balloon-like formation on a turbinate and, depending on the size, it may cause trouble with breathing or draining sinuses. It is an open space that is vulnerable to infection and nasal obstruction. This air bubble usually causes the turbinate to enlarge and apply pressure to other nasal components, which may cause pain.
In the end, many factors go into choosing among the inhaled steroids, some based on known differences between the medications, some based on personal preferences. The same is true when choosing among the anti-hypertensive medications used to treat high blood pressure. Often it is necessary to try one of the medications: if it is works well, causes few or no side effects, is convenient and not excessively expensive, you are likely to continue with it. If it fails to meet one or more of these criteria, you and your doctor now have the "luxury" of other preparations to try until you find the one best for you.