Question: Bright red rash on neck spreading :

Last Monday, I woke up with a small, round red, somewhat dry and scaly patch of skin just below my left cheek on my face-it was on my neck. I had previously treated this area for what I thought was acne, but it was not acne. My dermatologist said the next day it was some type of contact dermatitis and gave me Vanos cream to put on it, which I did. That night I woke up and the whole left side of my neck, down to my chest, was bright red and itchy. I cleaned the area with oatmeal soap and used Vanos on the entire area. When I awakened the next morning, it was not quite as red. I continued to use the Vanos on the entire area, and gradually the initial red patch and the area it had spread to were not as red, although they were still tender to the touch, itchy, and obviously red. Friday night I took a shower, and afterwards the middle of my neck was bright red down to my throat. I put Vanos on it, and it continues to be red, night and day. The initial red patch from almost a week ago is almost back to normal, as is the area below it. None of these rashes have been raised or looked like hives. There are no plaques or dryness. I should mention the creases in my neck are normal skin color. The red areas just look like inflamed red areas. I have started using only fragrance free lotions and changed my detergent to All Free and Clear. I should note that I suffer from severe anxiety and have had many physical conditions caused by this anxiety. Could you tell me what this rash that moves from place to place could be? I am not supposed to see my dermatologist again until Nov. 8th and the itch is driving me nuts. I should also mention the rash feels warm and that I feel hot much of the time, but not feverish. Hot showers make the rash much worse, as does getting hot in my sleep. I am 47 and have had two hot flashes so far.