Can you be allergic to the sun?
Can you be allergic to the sun?
Swimmer's itch is an itchy rash that can occur after you go swimming or wading outdoors. Also known as cercarial dermatitis, swimmer's itch is most common in freshwater lakes and ponds, but it occasionally occurs in salt ...
(HealthDay)—For most of us, an insect bite means an annoying itch and some minor discomfort. But more and more people are having serious—and even potentially deadly—reactions to bites and stings, researchers report.
As if there weren't enough reasons to avoid ticks, a symptom can develop in which a bite from a certain kind of tick causes an allergic reaction to red meat.
(HealthDay)—During the summer, poison centers get an increase in the number of calls about bites, stings, plants and pesticides.
New comprehensive guidance for the diagnosis and management of peanut and tree nut allergy has been developed, which for the first time brings together the latest research and expert views into a single robustly written document. ...
A new peanut allergy treatment developed by Monash researchers is now beginning clinical trials in Melbourne and Adelaide.
A cancer drug for patients with certain types of leukemia and lymphoma can also prevent reactions to some of the most common airborne allergies, according to a recent Northwestern Medicine study. The promising data from this ...
(HealthDay)—Annual out-of-pocket costs for lifesaving EpiPens in the United States skyrocketed nearly 124 percent for many privately insured patients between 2007 and 2014, a new study finds.
(HealthDay)— Some terms on skin-care product labels may mislead consumers, so people can't always rely on what they read on the package, according to the American Academy of Dermatology.
Allergy is a disorder of the immune system often also referred to as atopy. Allergic reactions occur to normally harmless environmental substances known as allergens; these reactions are acquired, predictable, and rapid. Strictly, allergy is one of four forms of hypersensitivity and is called type I (or immediate) hypersensitivity. It is characterized by excessive activation of certain white blood cells called mast cells and basophils by a type of antibody known as IgE, resulting in an extreme inflammatory response. Common allergic reactions include eczema, hives, hay fever, asthma, food allergies, and reactions to the venom of stinging insects such as wasps and bees.
Mild allergies like hay fever are highly prevalent in the human population and cause symptoms such as allergic conjunctivitis, itchiness, and runny nose. Allergies can play a major role in conditions such as asthma. In some people, severe allergies to environmental or dietary allergens or to medication may result in life-threatening anaphylactic reactions and potentially death.
A variety of tests now exist to diagnose allergic conditions; these include testing the skin for responses to known allergens or analyzing the blood for the presence and levels of allergen-specific IgE. Treatments for allergies include allergen avoidance, use of anti-histamines, steroids or other oral medications, immunotherapy to desensitize the response to allergen, and targeted therapy.
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