Insect stings occur when certain insects, such as bees, wasps, and hornets, inject venom into their target using a specialized structure called a stinger. This venom can cause pain, swelling, and redness at the sting site. The severity of the reaction varies among individuals, with some experiencing mild discomfort while others may have more serious allergic reactions. Most insect stings can be treated at home with basic first aid, including cleaning the area, applying ice, and taking over-the-counter pain relievers. However, individuals who know they are allergic to insect stings should carry an epinephrine auto-injector and seek immediate medical attention if stung.