Severe peanut allergies can cause anaphylaxis, in which the throat swells, constricting breathing. People with less severe peanut allergies can experience wheezing, shortness of breath, digestive problems, skin rashes or hives in the mouth and throat.
How to introduce peanut products to babies
If a baby has severe eczema, an egg allergy or both, these conditions increase the risk of a peanut allergy. For these high-risk infants, peanut product introduction should take place from 4 to 6 months of age — not with whole peanuts, which can be a choking hazard, but perhaps with diluted peanut butter.