Traditionally used as a treatment for all kinds of inflammatory and congestive conditions of the respiratory system, elderflowers also has a diaphoretic action that helps to reduce fevers. As well as the delicious cordial they create, they also provide a wonderfully sweet and refreshing tea. An infusion can be added to a bath to soothe irritable nerves and relieve itchy skin. Elderberries are particularly rich in flavonoids that work to keep the immune system strong and resilient. Acting as a diuretic, elderberry may also bring significant relief from urinary infections, flushing out toxins whilst increasing urination. The berries are also commonly used for hay fever and digestive health.