Trigger point injections can be administered in a doctor’s office and typically take around only 10-15 minutes to perform. Each person responds differently to trigger point injections; results can drastically differ from one patient to the next. On average, steroid injections typically work within two weeks of administration; trigger point injections containing an anesthetic usually work within a few hours. In some cases, trigger point injections may provide no relief; there could be several reasons for this. In many cases, however, after one injection, a trigger point typically resolves. Trigger points that arise due to chronic conditions keep recurring, including those related to fibromyalgia and myofascial pain syndrome. As these are chronic conditions, trigger point injections need to be given frequently in order to maintain pain relief. The type of medicine in the injection determines how frequently one can receive trigger point injections. If only anesthetics are injected, then the injections can be taken at intervals of one month; if the injection contains steroid medications, it cannot be administered as frequently due to the possible risk of complications. Although steroid injections cannot be administered as frequently, the results of a steroid trigger point injection can last from several weeks to several months.