Allergic disorders are a group of diseases that occur when the immune system overreacts to a substance that is harmless to most people. These substances are known as allergens.
Causes
The immune system produces antibodies that attack allergens
People with a family history of allergies are more likely to develop allergic disorders
Stress may also play a role
Types of allergic disorders
Hay fever : An allergic reaction in the nose and eyes
Eczema : An allergic reaction in the skin
Hives : An allergic reaction in the skin
Asthma : An allergic reaction in the lungs
Food allergies : An allergic reaction to food
Anaphylaxis : A life-threatening allergic reaction
Treatment
Treatments can help relieve symptoms
Lifestyle changes can help avoid exposure to allergens
An allergist can help identify allergens and provide immune therapy