does pollen causes sinus infections
Common or popular types of tree pollen which can affect your sinuses are: 1  Box Elder is a short lived tree and can be up to 20 meters. 2  Grey Alder grows up to 20 meters. 3  Silver Birch is a single-stemmed, short lived tree up to about 25 meters.  Hazel is a short term tree with several stems, grows1-6 meters in height.