Masks help prevent the spread of infectious diseases — like the Covid-19 virus — protecting both you and those you come in contact with. The simple barrier helps stop respiratory droplets from traveling into the air and onto other people when a person wearing the mask coughs, sneezes, talks, or raises their voice. However, wearing a mask for an extended period can create unwanted side effects, such as mask mouth. The Centers for Disease Control and Prevention (CDC) recommends wearing a mask in public settings, and studies show masks play a crucial role in slowing the virus's spread, so getting rid of this protective measure is not the answer. Instead, learn all about mask mouth — what it is, what causes it, and how you can prevent it — so you can find relief.