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Hypoallergenic, meaning "below average" or "slightly" allergenic, is a term meaning that something (usually cosmetics, pets, textiles, food, etc.) causes fewer allergic reactions. The term was first used in 1953 in an advertising campaign for cosmetics [ 1 ] [ better source needed ] or perhaps as early as 1940. [ 2 ]
"Controversial treatment methods offer hope of improvement to many individuals with MCS. [19]" Unproven treatments can be expensive, may cause side effects, and may be counterproductive. [19] Various combinations of different antioxidants together with “detoxifying” measures that are not evidence based are recommended by some authors.
Skin allergies frequently cause rashes, or swelling and inflammation within the skin, in what is known as a "weal and flare" reaction characteristic of hives and angioedema. [ 30 ] With insect stings, a large local reaction may occur in the form of an area of skin redness greater than 10 cm in size that can last one to two days. [ 31 ]
[1] [5] [2] [6] The common allergies vary depending on the country. [1] Risk factors include a family history of allergies, vitamin D deficiency, obesity, and high levels of cleanliness. [1] [2] Allergies occur when immunoglobulin E (IgE), part of the body's immune system, binds to food molecules. [1] A protein in the food is usually the ...
An allergen is an otherwise harmless substance that triggers an allergic reaction in sensitive individuals by stimulating an immune response.. In technical terms, an allergen is an antigen that is capable of stimulating a type-I hypersensitivity reaction in atopic individuals through immunoglobulin E (IgE) responses. [1]
Drug allergies or hypersensitivities can be broadly divided into two types: immediate reactions and delayed reactions. Immediate reactions take place within an hour of administration and are IgE mediated, while delayed reactions take place hours to weeks after administration and are T-cell mediated. The first category is mostly mediated through ...
Most cases of metal allergy are caused by consumer products containing metal; exposure at work can also cause metal allergies. [3] The largest human exposure to metals is ingestion; while food or drink containing metals can cause an allergic reaction in people who already have an allergy, it's not clear if it can cause a new allergy, as of 2021 ...
Shellfish allergies are highly cross reactive, but its prevalence is much higher than that of fish allergy. Shellfish allergy is the leading cause of food allergy in U.S adults. [31] As of 2018 six allergens have been identified to prawn alone; along with crab, it is the major culprit of seafood anaphylaxis. [13]