Re: How can tell if it's too soon/reaction to the food?
If there is a reaction to food, usually they'll have a red ring around their anus- from where the food is coming in contact with the skin on the other end. Our lo has rashes and I use this to determine if it's something she ate or something she came into contact with.
Oh yeah, you can also look for abnormal gassiness. I don't know if it indicates an allergy or just that a food makes them particularly gassy, but I avoid those foods before bedtime.
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