corn chips, nachos?

James is not an allergic type baby but tonight while he was scoffing his dinner (nachos) one side of his face went red. At first I thought it was all the sauce smeared over it but it was still there when I cleaned him up and kind of spread in the bath. It was a bit blotchy and was from his upper eyelid and all over his left cheek but not around his mouth.

I wondered if it could have been slapped cheek as it did look like a slap. The right side was totally normal.

It lasted about an hour and then looked a bit like little scratches. he seemed totally unbothered by it.

Does it sound like a reaction? and what are the normal offenders? would you expect it around his mouth too?

It looked a bit like the red blotchiness some people get on their necks when they drink IYKWIM

I have no idea and in the end wonder if it was just random red blotchiness....like when you get flushed. He has pale skin and is probably going to go red easily.