What are some normal reactions to a bee sting?

Swelling, redness, and itching are common reactions to a bee sting. When a bee stings, it injects venom that can cause localized reactions in most people. The body's immune response to the venom often results in inflammation, leading to swelling in the area of the sting. Redness is also a typical response, as blood vessels in the skin dilate due to the inflammatory response. Itching often accompanies the swelling and redness, a result of histamine release and other substances that cause irritation at the sting site.

These responses are part of the body’s normal immune reaction to foreign substances and do not usually indicate a severe allergic reaction, which would present differently, such as with systemic symptoms.