In the outpatient clinic, sometimes when closure is mentioned, the patient looks surprised and puzzled, or flatly refuses. Most of them say that the medicine used for the closure has hormones inside, or the closure is only a short-term pain relief effect. In fact, this is a misunderstanding of the closure. The right closure for pain relief is very good, and its side effects should be very limited. Just as oral medication is a massive bombardment, closure is a precise targeted strike. The side effects of local medication should be much smaller than systemic medication, and closure should not exceed 3 times, the side effects of hormones are mostly caused by long-term medication, so the closure is still very safe. And because of the more accurate action on the site of the disease, the effect is also very good. Closure can stop pain, relieve symptoms, interrupt the positive feedback chain of pain, so that the pain is relieved. But should also understand the misconceptions of closure, some patients to the clinic to play closed, some long-term closed, so it is not good, closed or have its indications, not what the problem can be solved. Therefore, the right disease, the right time, the right site, the right medication, the right doctor operation is to close the guarantee of good results.