PATCH TEST GALLERY

Patch testing gallery

Some examples of the uses of patch testing

Tea tree oil allergy Rash on arms and legs for two weeks. Patch test showed allergy to balsam of peru (left lower corner of bottom picture). The chemical is found in tea tree oil. Patch testing with tea tree oil revealed a very strong allergic reaction (upper part of bottom picture).	Nickel dermatitis Rash from metal frames (nickel). This patient had learnt how to avoid the rash by coating the metal with elastoplast.	Earring dermatitis Usually nickel. sometimes other metals.
Nickel dermatitis This patient avoided her allergy by wearing a leather strap between her skin and the watch band.	Watch band allergy Nickel was the culprit on patch testing.	Nickel dermatitis Allergy to the metal clips on the bra straps. This could also have been an allergy to elastic in the strap. However, only nickel was positive.
Lip dermatitis The suspected agent was colophony in lipstick. The patch test revealed nickel as the culprit. On examining the plastic lipstick holder, the inner lining of the holder was found to be metal.	Nickel spot test When applied to a metal, the cotton bud changes to a bright pink, indicating the presence of nickel. This test is useful for people with nickel allergy, who want to test a metal substance for nickel before purchasing or wearing.	Belt dermatitis The nickel spot test on the belt buckle was positive.
Shoe contact dermatitis Patch test revealed allergy to potassium dichromate, found in leather dye.