Paracetamol is a commonly used antipyretic and analgesic. Paracetamol Its main component is acetaminophen, so it can achieve the purpose of heat dissipation by inhibiting the activity of cyclooxygenase and inhibiting the synthesis of prostaglandins, and at the same time, it can have analgesic effect. In clinical practice, paracetamol is usually used to treat fever, headache and neuralgia caused by colds.