When you have a cold accompanied by cough, you can adopt some therapeutic diet methods to alleviate the symptoms. For instance, drinking sugar-cane and pear water has a lung-cleansing and lung-moisturizing effect. Additionally, you can consume more vegetables like water chestnuts and pears. If you like, you can also try salted steamed oranges. Remember to drink plenty of water, avoid spicy foods, and consume sufficient fresh fruits and vegetables. If the symptoms do not improve, please seek medical attention promptly.