I have the feeling in different places on my skin that I was pricked with a pin. It kind of burns and the location varies. This has been happening now for a couple of months. I am not sure if I have dry skin or if this is something else. Also in addition to the sting of the pricks, I do have some itching, especially on my back at different times. Does anyone else have this? Do I need to go to a dermatologist?