For the last two weeks I have had spots appear on different spots of my body. Some start out as almost a raised blister and itchy and others are just a red area which is very itchy and then the skin gets rough. Daily I am getting more on different parts of my body. From legs to back and arms. I ve changed nothing in the products I use. Any idea what it could be? I ve tried anti itch cream, cortisone creams and have taken Benadryl. Nothing seems to help.