While allergies are the main cause of hives, stress can also contribute to the itchy red bumps that make up a rash. Here's ...

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 ...

Medically reviewed by Danielle Weiss, MD Up to 30% of people with chronic hives (also known as chronic urticaria) have an ...

Vibratory urticaria is a rare condition that causes allergic-like skin reactions after exposure to certain types of vibration, stretching, or friction. Treatment involves trigger avoidance and ...

Chronic idiopathic urticaria, also known as chronic hives or chronic spontaneous urticaria, is characterized by an itchy skin rash accompanied by raised, tender, red welts or spots and may occur ...

This informational guide, part of PS's Condition Center, lays out the realities of this health concern: what it is, what it can look like, and strategies that medical experts say are proven to help.

Carrie Madormo, RN, MPH, is a health writer. She has over a decade of experience as a registered nurse, practicing in a variety of fields, such as pediatrics, oncology, chronic pain, and public health ...