Western medicine painkillers are mainly non-steroidal anti-inflammatory painkillers, narcotic painkillers, anxiolytic painkillers, central nervous system painkillers, antispasmodic painkillers and so on. 1. Non-steroidal anti-inflammatory painkillers: non-steroidal anti-inflammatory painkillers play a role by acting on the enzyme cyclooxygenase, the effect of pain relief in general, a wide range of pain relief, can be used for fever, cold, neuralgia, muscle pain, etc., the main drugs are ibuprofen, aspirin, celecoxib and so on. 2. Narcotic painkillers: Narcotic painkillers have a good pain relief effect, but more dependence, mostly used for pain caused by malignant tumors. The representative drugs are opioids, such as dulcolax, morphine and so on. 3. Anxiolytic painkillers: headache may be accompanied by tension and anxiety, anxiolytic painkillers can soothe the emotions and relax the facial muscles, and at the same time relieve the headache, representing drugs such as Valium and so on. 4. Central nervous system painkillers: central nervous system painkillers for psychotropic drugs, pain relief effect in general, there is dependence, representative drugs such as tramadol. 5. Antispasmodic painkillers: mainly used to relieve pain in the gastrointestinal tract, representative drugs such as atropine, scopolamine and so on.