Barbarn- not sure what desensitizing means. Could you explain? I belong to a blogging group about eczema on the Inspire site and have never heard of any desensitizing treatment for a true allergy, it is incurable. Only contact avoidance can remove symptoms permanently. But we are always searching for new treatments or meds or diets to help relieve our inflammation so please share!
Most of us experiment with diet to reduce eczema issues with symptoms like rash, itching, burning, sensitive skin and such, and that is called detoxing But if a metal is the cause then a dietary change would not help, unless for example he had iron issues and which could be in his diet.