An allergic reaction is your body’s response to a substance that it deems dangerous or potentially deadly. Spring allergies, for example, are caused by pollens or grasses. A deadlier type of allergic ...

Essential oils are currently the “cool kids” of the wellness scene, touted for health benefits ranging from relieving anxiety, fighting infections, easing headaches, and more. But if used improperly, ...

Infusion reactions, also known as acute infusion reactions or infusion-related reactions, are common adverse effects that can occur when a person receives medication intravenously. Infusion reactions ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Reaction formation is a defense mechanism in which people express the opposite of their true feelings, sometimes to an exaggerated extent. For instance, a man who feels insecure about his masculinity ...

Bee, wasp, yellow jacket, hornet, and fire ant are the insect stings that most often trigger allergic reactions. But most people aren't allergic to insect stings and may mistake a normal sting ...

If earrings make your earlobes itch or your necklace leaves a rash around your neck, you may be allergic to nickel. It’s one of the most common skin allergies, in part because nickel is used in so ...

Eyelash extensions are synthetic fibers, such as silk or polyester, that a cosmetologist applies to a person’s natural lashes. They make the eyelashes appear longer and fuller for several weeks ...