Yes, My 13 Year Old Son Has This Round Circular

Yes, my 13 year old son has this round circular pinkish patch on his R temple area. It has been there for about a month now. It isn't sore but itches at times. I have used Triamcinolone cream that MD had prescribed for some eczema that he had on his arms and buttock area back last spring. It will fade in some then get right back darker again. Will not completely go away.. Help???