What should I do tomorrow morning if my baby has reacted to peanut butter?

Good morning, Madam,

What do you mean by 'react'? As a precautionary measure, it would be wiser not to give it to him so soon after the first time if you suspect an allergy. I suggest waiting until 6 months of age. Give her an extremely small amount of creamy (not crunchy) peanut butter. If a reaction reoccurs, talk to her pediatrician to investigate further.

Sincerely,

Tom Samaha, pharmacist