Winter Woes is a term used to describe the common illnesses that occur during the winter season. The two crossword solutions for this term are COLDS (5 letters) and FLUS (4 letters). Colds are caused by viruses and are characterized by symptoms such as a runny nose, sore throat, and coughing. Flu, or influenza, is also caused by a virus and is more severe than a cold, with symptoms such as fever, body aches, and fatigue.