A "peanut patch" applied to the skin improved tolerance of the popular snack in children allergic to the seed, with more than a third able to tolerate the equivalent of one to four peanuts after 12 months.

Children with asthma may not realise they are allergic to peanuts because the symptoms are so similar, a study has suggested.

Infants can be protected from peanut allergy by eating them, a study has found.