In recent years, the prevalence of allergic rhinitis has been steadily rising. A study examining allergic rhinitis incidence from 2005 to 2011 found the prevalence rate increased from 11.1% in 2005 to 17.7%, a rise of 6 percentage points, with an additional 100 million affected individuals. If this growth rate persists,the prevalence of allergic rhinitis in China could reach as high as 27% by 2021. But do so many rhinitis sufferers truly understand their condition? Do they know its causes and how to treat it? Today, we'll delve into the science behind allergic rhinitis.
1. What is Allergic Rhinitis?
Allergic rhinitis is a chronic inflammatory disease of the nasal mucosa in atopic individuals. It is triggered by exposure to allergens and mediated by IgE, primarily involving the release of histamine alongside various immune cells and cytokines.
2. Causes
As evident from its definition, allergic rhinitis is primarily triggered by allergens. Common culprits include pollen, dust mites, and animal dander. Pollen induces allergies mainly because its particles carry antigenic determinants that provoke immune responses. The most prevalent allergenic dust mites are house dust mites and dust mites.When allergens are inhaled, they activate the immune system, leading to increased production of dust mite-specific IgE antibodies. These antibodies infiltrate the respiratory and nasal mucosa, binding to the surfaces of mast cells and basophils within the mucosa, thereby sensitizing the body. Beyond pollen and dust mites, some individuals also react to animal dander.
3. Treatment Options
Treatment approaches for allergic rhinitis include environmental control, medication, and immunotherapy. Environmental control involves managing environmental triggers—essentially avoiding allergens—through protective gear or nasal irrigation to flush out allergens from the nasal passages.
Nasal irrigation flushes out dust, crusts, mucus, bacteria, and allergens like pollen and mites using a saline solution. It enhances ciliary function in the nasal mucosa, reduces mucosal edema, and decreases inflammatory factors. The lean nasal irrigator is a suitable option for nasal rinsing.The Lean Nasal Irrigator features a non-axial water outlet design within the nasal vestibule, allowing adjustment of the irrigation solution's direction and angle. This effectively cleans allergens accumulated in the nasal vault due to respiratory turbulence, alleviating discomfort caused by nasal allergies in patients with allergic rhinitis. Standard external nozzles on the market cannot reach the nasal vault, resulting in poor irrigation effectiveness.
Beyond nasal irrigation, medication is also commonly used for treatment, including corticosteroids (budesonide, fluticasone propionate),antihistamines (loratadine, cetirizine), leukotriene antagonists, mast cell stabilizers (sodium cromoglycate), and decongestants (1% ephedrine nasal drops). While effective, these treatments carry potential side effects and require medical supervision.