Cosmetics are frequent causes of allergic contact dermatitis. After metals, ingredients of cosmetic products are the most common contact allergens identified. Even in the general population, some 2-3 % may be allergic to substances that are present in cosmetics and toiletries. Contact dermatitis is the most common skin disorder. It can be an irritant reaction or allergic reaction. Irritant contact dermatitis happens when harsh chemicals directly injure the outer layer of epidermis and irritate the skin. Allergic contact dermatitis occurs when the immune system reacts against a specific chemical that is considers foreign and harmful. While irritant dermatitis flares up…
Allergic reactions occur in response to a variety of substances, including environmental agents, food, medication, venom and contact agents. Common inhaled allergens are pollen from trees, grasses and weeds which provoke seasonal allergy symptoms. Year- round inhaled allergens include dust mites, molds, feathers, and dander from animals such as cats, dogs and horses. Cockroaches are also thought to cause allergic reactions and are believed to pay a role in inner city asthma. Venoms from sting insects, including honey bees, wasps, hornets, yellow jackets and fire ants can also provoke type-1 allergy symptoms. Allergy symptoms commonly occur in three conditions: allergic…
The symptoms of allergies vary widely- some are merely bothersome and other are life threatening. For instance, one person may get a few hives after eating a food he is allergic to, while another may stop breathing. With that being said, severe allergy symptoms tend to follow somewhat of a pattern, with certain allergens producing distinctive reactions. The most common reactions to allergens are congenstion, wheezing, sneezing, itchy eyes, skin irritation or itchiness and hives. As an allergy sufferer, you probably know the severe allergy symptoms that indicate a pending attack, but there are certain waring sings that may signal…
Aspirin allergy is seen in as many as 1% of the general population. However, a significantly greater number of asthmatic patients suffer from a triad of asthma, aspirin intolerance and nasal polpys. At least 5-10 % of adult asthmatics experience aspirin allergy attacks. Those with aspirin allergies may also react to non steroidal anti-inflammatory drugs, tartrazine, sodium benzoate, and acetaminophen. Symptoms usually appear within 20 minutes and include generalized urticaria, angioedema, rhinitis, and bronchial asthma. Aspirin allergy, as age increases, the risk of adverse effects from aspirin also increases. Unfortunately, older people are likely to use aspirin for cardiac and…
Food allergies are frequently blamed for physical and behavioral abnormalities in children, but just 6% of children are diagnosed with true food allergies. Food allergies diminish with age, until in adulthood they affect about one or two percent of the population. Real food allergy happens when large molecule or a whole food protein enters the physique and draws out an immunologic response. The body´s immune system reacts to a food protein or other large molecule as it does to an antigen- by producing antibodies or other defensive agents. A problem that results from exposure to food substances but does not…
