Skin Glossary · Distinguishing between conditions and causes
Allergic Contact Dermatitis
Related terms · Contact allergy
Allergic contact dermatitis is a condition where itching, redness, or blisters appear on the area that touched a substance after becoming sensitized to it. The reaction may not appear immediately and can be delayed.
What is allergic contact dermatitis?
It is a type of dermatitis caused by a delayed immune response to a specific contact substance. Allergic contact dermatitis occurs when a person becomes sensitized to a specific substance, leading to itching, redness, and blisters on the affected area. The reaction may not appear immediately and can be delayed.
How is it different from similar conditions?
It is distinguished from irritant reactions, which can occur in anyone, and a patch test is considered if necessary.
Why is this important in skin care?
Exposure related to products, occupation, or hobbies, as well as the distribution of lesions, are organized chronologically.
What should be checked based on my symptoms?
Avoidance of the causative substance is combined with inflammation treatment, and substances that have not been confirmed as triggers are not restricted indefinitely.
Related conditions and medical guidance
Check guides where this term is used
Evidence and Update Information
The definitions and safety standards in the materials below were referenced.
- American Academy of Dermatology Patch Test GuideI have confirmed the role of patch tests and delayed contact allergies.