SORE SPOT is a term used to describe an area of the body that is painful or tender. ULCER is a type of sore spot that is an open wound caused by an infection or irritation. ACHE is another word for pain, and ABSCESS is a collection of pus in the body caused by an infection. PEEVE is an annoyance or irritation, and LESION is an area of abnormal tissue. WELT is a raised mark on the skin caused by a blow, and SCAB is a crusty protective layer that forms over a wound. THORNINONESSIDE is a term used to describe the feeling of being pricked by a thorn.