Measures to avoid droplet transmission should be taken at a certain distance from the patient, and currently wearing a mask is an effective measure to interrupt droplet transmission. Patients with droplet-transmitted diseases can spread pathogenic bacteria into the air by coughing, sneezing, and talking, and others are at risk of infection after inhaling, such as chickenpox, mumps, and tuberculosis, all of which are diseases transmitted through respiratory droplets. Patients should cover their mouth and nose with their hands when coughing or sneezing to avoid spreading pathogenic bacteria into the air. Susceptible people should protect themselves by not going to crowded areas during the high disease season to avoid being infected. If you go to a crowded area, wear a mask for self-protection.