Allergic Contact Dermatitis: Topical Preservatives, Part I

J. Desiree Douglas


Dermatology Nursing 

In This Article


Health care providers should be careful when determining if a response during patch testing is an irritant or an allergic response, given that formaldehyde is a known skin irritant. Determining the relevancy of a formaldehyde allergy can be challenging. However, diagnosing a patient with a formaldehyde allergy has many consequences. There are a multitude of products a typical person uses daily with either formaldehyde or a formaldehyde-releaser, and it is challenging to eliminate all of them.