Seasonal Allergies Are On The Rise

According to The American Academy of Allergy Asthmas & Immunology (AAAAI), up to 30% of Americans suffer from allergic rhinitis. This number has been slowly increasing in recent decades in all industrialized nations. While reasons for such an increase vary, management of this condition is certainly possible.

Seasonal allergic rhinitis is associated with an increased incidence of chronic rhino sinusitis (runny nose), laryngitis, otitis media (ear infections), sleep problems and asthma.

Allergic rhinitis is an immune system mediated condition (condition which results from abnormal activity in the body’s immune system) characterized by an inflammatory response resulting in massive histamine release by our mast cells. The histamine release signals an overproduction of mucus in an attempt to prevent the airway absorption of more allergens. However, this histamine release and mucus hyperproduction results in the clinical symptoms of nasal congestion, rhinitis, pruritus (itching), and sneezing.

Poor performance at work and school is common because of the symptoms of congestion, runny nose, cough and itchy eyes. In addition, the common mainstream anti-histamine medications cause drowsiness, confusion and sedation. Many times the side effects from the common antihistamines is more problematic that the allergy symptoms they are designed to treat. This is unfortunate, because effective treatment without side effects would completely amend the allergic symptoms of congestion, runny nose, cough and itchy eyes and prevent the secondary occurrence of chronic rhino sinusitis, laryngitis, otitis media, sleep problems and asthma.

Ortho Molecular has developed Natural D-Hist, a natural solution for effective treatment of allergic rhinitis without the side effects of mainstream antihistamines.

 Ortho Molecular’s Natural D-Hist consists of an innovative combination of natural ingredients that are targeted specifically to treat seasonal allergies. These ingredients include: quercetin, stinging nettles leaf, bromelain and n-acetyl cysteine.


Quercetin, one of the primary ingredients in Natural D-Hist, is a flavonol that reduces inflammation associated with seasonal allergies by inhibiting mast cell histamine release. A recent study reported that after administration of quercetin, all the participants in the study experienced relief of nasal symptoms, comparable to the effect of antihistamine medications.
Stinging Nettles Leaf
For years stinging nettles leaf (Urtica dioica) has been prescribed by physicians for the treatment of allergic rhinitis and seasonal allergies. In one study, stinging nettles leaf, also found in Natural D-Hist, was shown to have had positive results. Study participants rated this treatment as ‘highly effective’ in reducing symptoms of allergic seasonal allergies.
Bromelain, a proteolytic digestive enzyme in Natural D-Hist, immediately breaks down any mucus that is produced during seasonal allergy season. The use of bromelain to treat inflammation and sinusitis has been substantiated by clinical studies. Bromelain, has also been shown to block activation of immune mediated inflammatory responses responsible for nasal mucus production.
N-Acetyl Cysteine
N-Acetyl Cysteine (NAC) has been used as a decongestant because of its ability to break mucous disulfide bonds and decrease mucous viscosity. This addition to Natural D-Hist is the perfect support for those that suffer from seasonal allergies. Ortho Molecular’s Natural D-Hist supports the healthy maintenance of the nasal and sinuses passageways. Natural D-Hist provides you with an effective, safe combination of herbal treatments that prevent and treat all symptoms of nasal and sinus allergy, most commonly seen on a seasonal basis. Take Ortho Molecular’s Natural D-Hist every day to provide you with the required support for your nasal passages and sinuses.

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