A trigger point injection is a procedure where a medication, usually a local anesthetic, is injected into the painful muscle to provide relief. The pain relief should be experienced not only in the affected muscle but in the area of referred pain.
In the trigger point procedure, a health care provider inserts a small needle into a specific area of pain (trigger point) in a muscle. The injection usually contains only a local anesthetic but occasionally may contain steroid medication and/or Vitamin B12.
This procedure can be performed in the office and does not require sedation. Your provider will first palpate and identify the painful areas within a muscle. After identifying such trigger points, your provider will inject those areas. They may help immediate relief for severe pain in patients with an individual headache or migraine attack or can help treat an overall worsening of head pain in patients with chronic headache disorders who are having an exacerbation.