formaldehyde sensitivity (causing a rash) is typically diagnosed by patch testing on the skin. if you are found to have a contact allergy avoidance of that item is recommend. there are several other preservatives that are also formaldehyde releasers. these include quaternium-15 imidazolidinyl urea diazolidinyl urea dmdm hydantoin and bronopol. in many cases i recommend avoiding all of these if patch testing is positive to formaldehyde. your doctor can help you decide if the formaldehyde releasers should also be avoided. also your skin doctor may have access to the contact allergen replacement database (card) which can assist in generating lists of products that do not contain certain products in them (such as formaldehyde).
if someone is allergic to formaldehyde where can i find a list of products that do not have it?