Paracetamol is a versatile pain killer that is used for a variety of conditions and temperature regulation. Paracetamol is analgesic medicine which is known to help relieve pain and fever. It can be used to help relieve a wide range of symptoms such as headaches, migraines, fevers, muscular pain or aches and pains from cold and flu. Although the exact mechanism of action of paracetamol is not known, it is one of the most widely taken medications in the world and is also one of the safest if taken correctly.