A pain reliever is a type of medication designed to reduce or eliminate discomfort in the body. These medications can be classified into two main categories: over-the-counter (OTC) pain relievers, such as ibuprofen and acetaminophen, and prescription medications, which may include stronger options like opioids. Pain relievers work by blocking pain signals in the brain or reducing inflammation. Pain relievers are commonly used to treat various conditions, including headaches, muscle aches, arthritis, and post-surgical pain. While they can be effective, it is important to use them as directed to avoid potential side effects or dependency, especially with stronger prescription options.