The True Test is made up of 2 self-adhesive strips that are stuck to the back and which contain 24 substances which are responsible for the majority of cases contact dermatitis.
The True Test is a very reliable diagnostic test, but it must be applied, read and interpreted purely and exclusively by your doctor.
If your doctor has asked you to take a True Test to your clinic appointment, keep it in the fridge until the day it is to be used.