Final answer:
The term used to describe a rash that erupts on the surface of the body is skin rash. Examples of skin rashes include eczema, hives, and contact dermatitis.
Step-by-step explanation:
The term used to describe a rash that erupts on the surface of the body is skin rash. Skin rash refers to any abnormality in the skin's appearance, which can be characterized by redness, swelling, itchiness, or other changes. Examples of skin rashes include eczema, hives, and contact dermatitis.