Is this a allergic reaction?

lace 💓💕

I noticed this spot on my sons face when he woke up and thought it was just how he slept. However it’s been over an hour since then and looks like it’s starting on the other side of his face and going towards his eyebrows too. He hasn’t been introduced to anything new other than vegetable pasta I made him around 3pm yesterday. He didn’t have the rash when we put him to bed

Sorry for bad pic, it’s hard to keep him still