Bank One Contact Information

Bank One Contact Information

Bank One Contact Information

Allergic contact dermatitis can occur at any age. But it is uncommon in young children and in individuals older than 70 years of age.

How Does Allergic Contact Dermatitis Occur?

Allergic contact dermatitis is a classic delayed cell mediated type of allergic reaction. When a person comes in contact with an allergen, for example poison ivy resin, the Langerhans cells of the epidermis takes up the antigen, process it and present it to T lymphocytes in the lymph nodes. T lymphocytes, thus activated, proliferate and become capable of producing what are called cytokines in response to the specific antigens. This whole process of sensitization takes 7-21 days, though some weak antigens can take many months to get sensitized.