Question

3. What is the cause of inhaled allergens?​

Answer 1

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Contact allergies occur when a substance such as a hair dye or detergent comes in contact with a person's skin. This is also known as contact dermatitis. Inhaled allergies are the most common type of allergy. They're caused when a person breathes in an allergen such as pollen or animal dander.

Answer 2

Answer:

Inhaled allergies are the most common type of allergy. They're caused when a person breathes in an allergen such as pollen or animal dander