When you have a cold, it is best not to use air conditioning. However, it is important to note that if the cold is caused by heatstroke, then it is okay to use air conditioning at this time, but you should ensure that the temperature is not set too low and avoid direct exposure to the airflow. If it is a cold caused by exposure to cold wind, it is best not to use air conditioning. Using a fan is acceptable, but avoid direct exposure to the airflow as well. Additionally, it is recommended to actively cooperate with treatment, abstain from smoking and drinking, and maintain a light diet, consuming more fresh fruits and vegetables to supplement vitamins. Also, it is advised to exercise moderately to strengthen the body, pay attention to personal hygiene, and consume fresh fruits and vegetables to help promote a quicker recovery from the illness.