Interested in biofeedback device to help with chronic musculoskeletal pain & severe anxiety. do i have to get an rx, or can i order something online?

Generally not but...: For biofeedback devices like the emwave from heartmath no prescription is required, though if you want to use it as a medical expense deduction a prescription would help. Some other types of devices that might help, such as the alpha-stim, do require prescriptions. For optimal relief it would be best to do both biofeedback and microcurrent devices.

Consult: While there are various biofeedback devices that you can purchase and use on your own, it's best to see your physician first and be referred to a biofeedback professional. Also there are other methods that may be more suitable for you.

Biofeedback: I recommend talking to your doctor about referral to a biofeedback specialist before trying online.