This article discusses what you should know about lidocaine patches for back pain, including how well they work, side effects ...

But researchers in Australia found that it didn’t work any better than dummy pills in helping people who had back pain for less than 2 weeks. Those taking acetaminophen did not get better faster.

Backonja et al. have demonstrated that one 60-minute application of a high-dose capsaicin dermal patch provides immediate and long-termreduction in pain in patients with PHN. This multicenter ...

You apply these portable heating patches against your underwear, in cramp zones like your stomach or lower back ... pain relievers — like aspirin or ibuprofen. How do temporary heating patches work?