dexamethasone as analgesic:Dexamethasone is effective for the symptoms of lumbar and leg pain caused by intervertebral disc herniation, but its role is not to directly relieve pain, but to relieve pain by reducing swelling of nerve roots and promoting the metabolism of local inflammation. After clinical application of dexamethasone, the effect of pain relief is generally ideal, but long-term application is often not recommended, because long-term application will cause some other side effects of the body. For example, a series of complications such as osteoporosis and reduced immunity. And for patients with diabetes or increased blood sugar, special attention should be paid when applying dexamethasone, because dexamethasone can interfere with the body’s metabolism and cause increased blood sugar.