Allergic Contact Dermatitis (Hair Dyes, Cosmetics, etc.)
Allergic contact dermatitis is an inflammatory skin reaction that occurs when the skin comes into direct contact with a substance to which the body has become sensitized.
Symptoms include a persistent rash (redness), itching (pruritus), and dry skin, specifically in the areas of the body that have come into contact with the triggering substances.
The reaction occurs when the immune system identifies commonly used materials as “invaders,” such as metals (e.g. nickel in jewelry or belt buckles), fragrances, chemicals, hair dyes, cosmetics, occupational materials, and other substances.
How is it diagnosed?
Accurate identification of the substance responsible is possible through patch testing. This is a safe and targeted diagnostic procedure in which special adhesive patches containing suspected allergens are applied to the patient’s back for several days. This allows the specific triggering allergen to be identified and an appropriate avoidance strategy to be developed.

