An ant sting occurs when certain species of ants, such as fire ants, inject venom through their stingers. This venom can cause pain, redness, and swelling at the site of the sting. The severity of the reaction varies depending on the individual's sensitivity and the type of ant involved. Most ant stings are not life-threatening, but some people may experience allergic reactions, which can lead to more serious symptoms. Treatment typically involves cleaning the area, applying ice, and using over-the-counter pain relievers or antihistamines to alleviate discomfort and reduce swelling.