An allergic reaction happens when your immune system defends against substances that otherwise wouldn’t pose a threat to your body. Common allergens include pollen, mold, and certain foods. Your ...

That new shampoo promised incredible volume and shine, but instead delivered an itchy, irritated scalp. Sound familiar? You’re not alone. While we often focus on how hair products affect our locks, we ...

After receiving an injection, some people experience symptoms at the injection site on the skin. This reaction is a common adverse effect of vaccines, Botox injections, biologics, and chemotherapy.