In a healthy body, mast cells (the “lookout” cells of the immune system) only release histamine when they detect a foreign invader, like pollen or venom. In CSU, these cells dump histamine into the ...

Both bug bites and hives can cause red, itchy bumps on your skin. While it can be difficult to tell them apart, learning key features and characteristics of each can help. Hives and bug bites are ...

Pictures of hives, also known as urticaria, can help you to identify these raised, red, itchy bumps or welts. Causes include stress, infections, food or latex allergies, medications, and environmental ...

Have you ever experienced an outbreak of itchy, red welts appearing out of nowhere? Hives, also known as urticaria, can be incredibly annoying, making even the simplest tasks uncomfortable. The ...

As if the mental toll of stress wasn't enough, it can also manifest in a multitude of physical symptoms — from hair loss to acne. And one often-overlooked way anxiety can manifest is in stress hives, ...