Colds are primarily transmitted through airborne droplets, as well as close contact with patients, shared utensils, and other means of transmission. This disease itself is a respiratory infection caused by viral infections, leading to symptoms such as runny nose, sneezing, headache, fever, sore throat, and cough. However, it is self-limiting, so there is no need for concern. Once sick, drink plenty of water, rest, treat symptoms accordingly, and prevent complications. To prevent colds, strengthen protection, avoid going out during the flu season, exercise regularly, and boost immunity.