The term 'SOME RED MARKS' can be summarized by two crossword solutions: WELTS (5 letters) and ACNE (4 letters). WELTS are raised, red marks on the skin caused by an injury or allergic reaction. They are usually painful and can last for several days. ACNE is a common skin condition characterized by red marks, usually on the face, chest, and back. It is caused by clogged pores and is often associated with hormonal changes.