Many allergens such as dust or pollen are airborne particles. In these cases, symptoms arise in areas in contact with air, such as the eyes, … See more

Acute response
In the initial stages of allergy, a type I hypersensitivity reaction against an allergen encountered … See more

Giving peanut products early may decrease the risk of allergies while only breastfeeding during at least the first few months of life may decrease the risk of dermatitis. … See more

The allergic diseases—hay fever and asthma—have increased in the Western world over the past 2–3 decades. Increases in allergic … See more

Risk factors for allergies can be placed in two broad categories, namely host and environmental factors. Host factors include heredity, sex, race, and age, with heredity being by far the most significant. However, there has been a recent increase in the incidence of allergic … See more

Effective management of allergic diseases relies on the ability to make an accurate diagnosis. Allergy testing can help confirm or rule out allergies. … See more

Management of allergies typically involves avoiding the allergy trigger and taking medications to improve the symptoms. Allergen immunotherapy may be useful for some types of allergies. See more