It is better to get a proper sun exposure for colds. Sunbathing after a cold is conducive to promoting the absorption of calcium in the body, and has a certain effect on strengthening the body. In addition, sunbathing, usually in the air circulation is better, is conducive to the patient to breathe fresh air, which is conducive to improve the condition. It should be noted that, try to avoid going to the sun at noon, especially when the sun is more fierce, otherwise you will also feel dizziness and discomfort because of exposure to the hot sun, and even heat stroke in the hot summer. In the cold winter, rest and keep warm when you go out in the sun. Colds are mainly related to viral invasion and the disease is self-limiting. The main thing to do during this period is to rest well, drink plenty of water and avoid staying up late. If there is any abnormality, it is recommended to consult a doctor promptly.