14
Jul
Allergic Reaction Hives Causes. It can be caused by allergic reactions medications or a hereditary deficiency of some enzymes. Rashes can also be caused by an illness such as measles or chickenpox. Theres no single cause of hives and often what triggers your reaction will depend on the allergies you have. The welts that come with hives arise when certain cells release histamine and other chemicals into your bloodstream.
Rashes can be caused by many things including exposure to certain plants poison ivy for example allergic reactions to a medication or a food. The most common foods that cause hives. The following symptoms may indicate angioedema. Food allergy is an immune system reaction that occurs soon after eating a certain food. Hives can occur when too much histamine is released into the body by the immune system. Insect bites and diseases may also be responsible.
Sometimes theres no identifiable reason for a breakout.
Food allergies most commonly an allergy to citrus fruits will cause hives. Food allergy is an immune system reaction that occurs soon after eating a certain food. The most common foods that cause hives. When an allergic skin reaction occurs the body releases histamine causing small blood vessels in the skin to leak leading to swelling and causing a rash. Swelling in the eyes or mouth. Even a tiny amount of the allergy-causing food can trigger signs and symptoms such as digestive problems hives or swollen airways.