The Mayo Clinic is in Rochester, Minnesota, not New York.

The reaction to MSG is not an allergic reaction. This is important as an allergic reaction can lead to anaphylactic shock and death. MSG headache is unpleasant but not life threatening.

I learned a quick treatment for brain freeze from my kids. Simply apply pressure with your tongue or finger to the gums just above and behind your front teeth. I don't know why it works, but it does. The pain goes away almost immediately.