Why has this happened? -I have gotten rashes on my face, though not severe
-my upper arms have gotten itchy, and when I itch them small bumps protrude
-my face has also gotten itchy

The rashes (as of now) are kind of going away now, though my face is still itchy. My arms are not really itchy anymore.

This has happened to me more than once. I am thinking it might be food poisoning, but is it? Also, could something else cause this?

And my arms started to get itchy right after finishing dinner at a restaurant.