What effect does the child wear a mask for a long time have on the body?

Wearing a mask for a long time may have a certain impact on the child's body. If the mask is worn for more than 4 hours, the nose, cheekbones, ears and other parts are prone to stress-related injuries. In addition, wearing a mask for a long time may also lead to poor breathing and limb weakness. However, if worn correctly, wearing a mask for a long time can reduce the chances of bacterial and viral infections in the mouth and respiratory tract.