Final answer:
Noninvasive pain relief techniques offer the advantage of giving patients control over their pain management, allowing for reduced dependence on medication and a sense of empowerment.
Step-by-step explanation:
The primary advantage of noninvasive pain relief techniques such as guided imagery, biofeedback, and relaxation is that they give the patient some control over their pain management. These methods, including the relaxation response technique developed by Herbert Benson and biofeedback techniques developed by Gary Schwartz, harness the patient's focus and have been shown to be effective in treating conditions like hypertension, stress, and chronic pain. By using these techniques, patients can often reduce their dependency on medication and experience a sense of empowerment in managing their own wellbeing.