Magnets, Electricity, Headaches?

So. There was this article[nytimes.com] in the NY times earlier this week, on how headache and migraine research has been re-invented: this time, with the use of electricity and electromagnets. With around 30 million people in the US suffering from headaches and migraines, this might be a welcome change to the medications and pharmaceuticals that we currently have, especially if it works better. One method, called Occipital Nerve Stimulation, uses implanted electrodes and an electrical signal to alleviate the pain associated with migraines. Transcranial Magnetic Stimulation, on the other hand, uses "brief magnetic pulses" to alter the electrical signals being sent through inside your brain.
These electrical impulses attempting to alter your nerve signal... doesn't sound safe to me. There's a lot of things in my brain that I definitely wouldn't want "edited." I can just see things inside my brain having their momentums change due to these electrical and magnetic impulses. It's kinda like waving a magnet over a hard drive: nothing good can come of it. Hopefully, it's safe enough for use, but I'll prefer to have my traditional headache solution: eat a meal, turn on some soft music, and take a nap. Works every time.