Lastly, the use of herbal remedies has often been advocated, but has not been shown to be as effective as the medications that are presently being used by allergy and asthma physicians. The most common hay fever triggers are pollens, which include grasses, trees, and weeds. In the late winter and early spring, trees are the usual allergens causing problems. In the late spring and early summer, we are usually dealing with grass pollens. And in the late summer and early fall, we are usually dealing with the weed pollens and especially ragweed.
Allergies are a common trigger of asthma.
In fact, there have been many studies that have shown that nasal allergies will aggravate asthma symptoms. The vast majority of asthma patients have in fact nasal symptoms and by treating the nasal symptoms you actually see an improvement in lung function in asthma patients. My doctor told me that steam inhalations are good in such cases. Inhaling steam will sometimes help patients with sinus infections. However, it will not help allergic nasal congestion and will probably irritate the eyes more than they already are.