Respiratory infections can be self-healing, usually in individuals who are physically strong or have a robust immune system. During an infection, drinking plenty of water, resting adequately, timely replenishing vitamin C, eating fresh fruits and vegetables, exercising appropriately to enhance physical fitness, and dressing appropriately according to the weather can potentially lead to self-healing. However, for elderly and frail patients, the self-healing rate from respiratory infections is very low. They should be treated under the guidance of a doctor, actively taking anti-inflammatory and anti-infection medications, as well as cold remedies. It is also important to ventilate rooms frequently to maintain fresh air circulation indoors, avoid overly dry environments, and keep indoor temperature and humidity at comfortable levels. Additionally, it is advisable to avoid spicy, greasy, cold, and irritating foods, and not to consume seafood to prevent exacerbating cold symptoms by promoting the production of phlegm.