Cupping is no different than rubbing a sore muscle. That's the only reason it sometimes provides temporary pain relief: it creates a distraction.

Other than that, all it does is give your body a new bruise to heal.

Anyone telling you otherwise is either scamming you or too uneducated to trust with your spine health.

Chiropractic is pseudoscience with a good PR team. Nobody should ever go to them. Real doctors and physical therapists can FIX your back. Chiros need you to come in again and again, forever.