In the trigger point procedure, a health care provider inserts a small needle into the patient’s specific area of pain (trigger point) in a muscle. The injection usually contains only a local anesthetic, but occasionally may contain a steroid medication. This procedure can be performed in a doctor’s office and does not require sedation. The patient is positioned sitting or lying down. Your doctor will first palpate and identify the painful areas within a muscle. After identifying such trigger points, your doctor will inject those areas. Depending on how many trigger points are identified, more than one injection may be required. Some headache specialists perform trigger point injections along with peripheral nerve blocks in the same treatment session.