I don't know how accurate these pictures show Aiden's red cheek, because it is bright red. After 10 days of this, 18+ hours of sleeping, decreased appetite, and a fussy fussy baby, I took Aiden to the doctor's. It seems that my sweet baby boy has cellulities. It is a skin infection--most likely as the result of that wicked cold Kyle brought home from nursery which then probably turned into a sinus infection and caused a skin infection called cellulitis in his left check.
Ten days of antibiotics and it should be cleared up. I already can see that he is getting a better appetite, but that might just be from the meds. His check is still red, but I am told it should be getting better soon.