Scrambler therapy is a non-invasive method of treating neuropathic pain. Electrodes are placed on the body to send "non-pain" signals to the brain, replacing the pain signals. It doesn't stop the pain. It just trains the brain to interpret those signals as non-pain. In my very non-technical interpretation, it is a bit like changing the station on a radio. The music is playing but it is different music.

In the non-research, non-hospital setting, it is called Calmare and there's a growing number of clinics around the country. It is increasingly being covered by insurance even in the non-research, non-hospital setting.
https://www.healio.com/news/hematology-oncology/20160106/mayo-clinic-researchers-test-scrambler-therapy-for-pain
It can be hard to figure who in a hospital is actually offering the treatment. It may be the oncology program, as the first use of Scrambler was for the nerve pain associated with chemotherapy.

Acupuncture helped me more than the scrambler but you need to find the right one. The scrambler helped me with foot pain but it's no longer covered by my insurance.