I have been getting these small round scaly spots for no reason i can come up with. They are small, eraser size, and round. They pop up, seem dry, and in about a week, go away. They sometimes are itchy (hardly noticable) but they dry up and flake away. They have no rhyme as to where they pop up, face back, or arm. They donot bleed unless scratched, nor do they seem wet. Any help would be great.