Allergy
Increase your immunity and susceptibility through Homoeopathy
Allergy
Increase your immunity and susceptibility through Homoeopathy
Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment.
These diseases include hay fever, food allergies, atopic dermatitis, allergic asthma
Symptoms may include red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling.
Common allergens include pollen and certain foods. Metals and other substances may also cause such problems. Food, insect stings, and medications are common causes of severe reactions. Their development is due to both genetic and environmental factors. The underlying mechanism involves immunoglobulin E antibodies (IgE), part of the body’s immune system, binding to an allergen and then to a receptor on mast cells or basophils where it triggers the release of inflammatory chemicals such as histamine.
Allergies are common. In the developed world, about 20% of people are affected by allergic rhinitis, about 6% of people have at least one food allergy, and about 20% have atopic dermatitis at some point in time. Depending on the country about 1–18% of people have asthma.
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Common signs and symptoms |
Nose |
Swelling of the nasal mucosa (allergic rhinitis) runny nose, sneezing |
Sinuses |
Allergic sinusitis |
Eyes |
Redness and itching of the conjunctiva (allergic conjunctivitis, watery) |
Airways |
Sneezing, coughing, bronchoconstriction, wheezing and dyspnea, sometimes outright attacks of asthma, in severe cases the airway constricts due to swelling known as laryngeal edema |
Ears |
Feeling of fullness, possibly pain, and impaired hearing due to the lack of eustachian tube drainage. |
Skin |
Rashes, such as eczema and hives (urticaria) |
Gastrointestinal tract |
Abdominal pain, bloating, vomiting, diarrhea |