The term 'Bubble Raised on the Skin' can be summarized by two crossword solutions: BLISTER (7 letters) and WELT (4 letters). A BLISTER is a small pocket of fluid that forms on the upper layer of the skin, usually as a result of friction or burning. It is filled with a clear fluid, which is often painful. A WELT is a raised area of skin caused by an injury, such as a blow or insect bite. It is usually red and swollen, and may be accompanied by itching or pain.