Physical therapy may help reduce dependency on pain relieving drug therapies. Morphine is effective in relieving cancer pain. Epidural analgesia is a relatively safe method of relieving pain in labor. Sumatriptan is effective for ending or relieving the intensity of migraine and cluster headaches. A 2011 review said melatonin is effective in relieving epigastric pain and heartburn. They then marched to the relief of the consul's relieving army. Doodling can be used as a stress relieving technique. However, treatment focuses on relieving associated symptoms. Palliative care focuses on relieving symptoms and increasing or maintaining quality of life. A 2016 Cochrane review concluded that morphine is effective in relieving cancer pain. These may be used for prevention, treatment, diagnosis or for relieving symptoms of a disease. Orthotic devices are one type of intervention for relieving symptoms of hemiparesis. It is not effective in relieving migraine attacks once in progress. He calls out for Gawain, whose attempt at relieving the King's pain had failed. This is the first step toward relieving suffering by letting go of attachment.