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Yes, food allergies can cause a cough, usually together with other allergy symptoms and sometimes as part of a serious reaction.

Yes, food allergies can appear suddenly in children or adults when the immune system becomes sensitized and then reacts to a food.

Yes, food allergies can trigger asthma symptoms in some people when they react to a food allergen.

Yes, food allergies can worsen over time in some people, while others stay stable or improve with careful avoidance and allergy care.

Yes, food allergies can start later in life, with many adults developing new reactions after years of eating a food without trouble.

Yes, food allergies can start at any age, from infancy to late adulthood, as immune responses to specific foods can change over time.

Yes, food allergies can affect blood pressure, mainly through short-term swings during reactions rather than steady long-term hypertension.

Yes, food allergies can make your nose run, but nasal symptoms usually appear along with itching, hives, or other allergy signs.

Yes, food allergies can make your eyes swell, causing puffy lids, itching, and redness that range from mild irritation to emergency-level reactions.

Yes, food allergies can make your eyes itch by triggering allergic conjunctivitis, though airborne allergens are a more common cause.