Nettles for Sinus Congestion

What does the herb nettles do for sinus congestion and what other benefits does this herb have?

The use of nettle for allergies, including sinus congestion, is not a traditional use. It does work as an anithistamine in a freeze-dried leaf extract form. Although the mechanism is not known, it is safe and effective for this purpose. The usual dose is one to two capsules every two to four hours.
Nettles are a good source of vitamins and minerals. Actions include the stimulation of blood circulation, diuretic, antiseptic, blood detoxifier, mucus removal, reduction of high blood pressure, reduction of blood sugar, support for the spleen and elimination of uric acid. They are useful in kidney and spleen problems, anaemia, arthritis, gout, bronchitis, high blood sugar, high blood pressure, chronic skin disease.
Anti-allergy actions include removal of mucus from the respiratory system, blood circulation support and the supply of an abundance of immune system supporting chlorophyll, vitamins and minerals.