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Antihistamines and Sinus Relief
Like chronic rhinitis (hay fever), chronic inflammation of the sinuses might be of allergic origin. Exposure to specific allergens leads to the development of allergic sinus symptoms, like itching inside the nose, sneezing, runny nose, headache etc. Whenever allergens come into contact with the body, memory cells in the circulation and in tissue identify the allergen and release substances that mediate the allergic response, the most important substance being Histamine. That is why anti-histamines have a prominent role in the treatment of seasonal allergies like allergic sinusitis and hay fever etc.
How do antihistamines work?
Antihistamines are chemicals that have been found to block the histamine receptor and prevent the binding of histamine with it’s receptors, resulting in an inhibition of histamine effect on tissue, like itching and swelling and redness and sneezing and coughing etc. This same characteristic of antihistamines is what causes the side effects, because it does not only block histamine receptors at the site of the allergy, but instead it blocks histamine receptors in the whole body, often resulting in a number of undesired side effects.
What are some side effects and precautions associated with antihistamines?
Different forms of antihistamines:
Antihistamines can be given as syrup (children) or tablets, as injections (acute symptoms), or as topical preparations (least side effects) like nasal drops and creams. Some antihistamines are used in the form of nasal spray.
|Submitted on January 16, 2014|