I won't push this if it's the only symptom humuhumu has, but my allergy mom friends think the rosy cheeks look more like allergies than teething. If it persists beyond the teething stage it might be something to look at.
Yeah, it's possible. I had severe allergies to pollen and mould when I was younger.
She developed an all-over rash to go with the cheeks. We thought it might have just been the heat as it's healing now and it doesn't seem to correlate with what she's eaten. But maybe it was something outside - there's so much stuff in bloom right now it would be hard to figure out what it was. :/