lapis...ok, my son is here with me now...he says, no there were no major changes in our household, which is true. This mesh thing began two yrs. ago, it began smaller and grew more "mesh"....no diff. household chem's. were used, other than what was always used. NO particular dietary changes were made at that time either. We had the dog and cats then too. No, there doesn't seem to have been any particular changes that took place two yrs. ago, taht would bring this on. However, I too am convinced that this is an allergic response to something, because other than this,,,he is healthy. I do so appreciate your helping us!