Allergology is a medical field that concerns itself with the emergence, expression and treatment and development of allergies. Specialists in allergology and immunology know substances that have the ability to induce an allergy. Allergic illnesses can be seasonal or year-round rhinitis (e.g. hay fever), skin diseases such as eczema and neurodermatitis or metabolic disorders involving specific grain varieties, which induce diarrhoea, vomiting and intestinal mucosa damage in afflicted patients.
Various blood and skin tests (e.g. prick tests) are used for diagnosis and depending on results an appropriate medication is prescribed. Additionally, patients are advised as to how to protect themselves from allergies.