There is a hereditary risk of allergy if close relatives (father, mother and siblings) have an allergy (hay fever, asthma or neurodermatitis, for example). In this case, you can get your doctor to fill in an allergy questionnaire for you. Take it with you when you go in to give birth. The clinic staff will then be fully informed.
Being at risk of allergy does not automatically mean that your child will develop an allergy. The best protection against it is exclusive breastfeeding for the first 4-6 months so that the delicate immune system will not be irritated by foreign proteins – from weaning food, for example.