Aspirin is a common REMEDY for headaches. It is a non-steroidal anti-inflammatory drug (NSAID) that is used to reduce pain, inflammation, and fever. Aspirin is also known by its generic name, acetylsalicylic acid. It is available in many forms, including tablets, capsules, and liquids. Aspirin has been used for centuries to treat headaches, and it is still one of the most popular over-the-counter medications for this purpose.