Indusium: the case made by an insect larva: a membranous layer of the embryo of Locustidae below the serosa. Explanation of Terms Used in Entomology John. B. Smith. serosa: the outer membrane that envelops the forming embryo, the amnion and the remainder of the egg. Explanation of Terms Used in Entomology John.
In essence, your body forms an allergic reaction to stress. Unfortunately, stress can not be eliminated with histamine, so instead, the histamine just causes hives to appear on your face, neck, chest and other parts of your body.
This common problem usually occurs on the backs of the forearms and hands, as we get older. It occurs due to a combination of chronic sun exposure, thinning of the skin with aging. It is worse in patients on chronic corticosteroids, prescription blood thinners, OTC aspirin, or NSAIDâs (Advil, Aleve etc.). The skin on the forearms and back of the hands gets sun exposure daily over many years.