I have redness and urticuria(itch) but no rash . it extends from my nipple line to my skull both front and back?

Doctor can evaluate: Itching usually means there is histamine being released in the skin, often as part of an allergic reaction to something. A primary care doctor or a dermatologist can check to see what might be making the skin itch. Skin dryness, or reactions to foods or medications, can cause itching. Occasionally, a person with internal problems like liver or kidney disease can also get itching.