HistaBlock® is what its name says--a natural histamine blocker, or anti-histamine. This makes it an excellent choice for fighting allergies--whether hayfever, pollen, or food.
It contains bromelain, which is known to help reduce swelling. Immature orange peel contains a substance called synephrine, which mimics the neurotransmitter epinephrine to open the bronchioles. Thus the idea is to reduce the swelling of the bronchioles and reopen the bronchial passages for better breathing.
For nasal allergies, it might be used with Seasonal Allergy (formerly ALJ®), which can act as an expectorant. Another excellent complementary product to take with it is NSP's Silver Shield®. Silver Shield® uses extremely small particles of silver to kill various germs, bacteria, and viruses. Some people (carefully) uptake Silver Shield into the nasal passages, while others simply take orally.
IMPORTANT NOTE: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. All statements are based on historical or anecdotal use of herbs and natural remedies. If a serious health condition exists, one should see a qualified medical doctor rather than rely on information given on this website.