What is happening in my mouth?

When I asked "Kawthar" her friend "Souad" about the reason that makes her turn her face away when she approaches her, "Souad" couldn't tell her. And when Kawthar told her mother, she knew the reason. It is an unpleasant smell emanating from her mouth. In this story, we learn about the causes of unpleasant breath, and how to treat it easily. Sizes: 28*20 Small Pages: 18