The baby dry cough and bad breath may be pharyngitis, tonsillitis, indigestion and other diseases. 1. pharyngitis, baby dry cough and bad breath may be pharyngitis, clinically pharyngitis after the increase in secretions in the throat area, bacterial growth may occur after dry cough and bad breath symptoms. 2. tonsillitis, some babies have tonsillitis due to inflammation stimulation of the tonsils, may lead to increased secretions in the crypt, a large number of anaerobic bacteria infection may occur after the symptoms of dry cough and halitosis. 3. indigestion, some babies have indigestion due to food digestion and absorption is not good, may lead to the baby dry cough bad breath and other symptoms. If your baby has a recurring dry cough and halitosis, you need to seek medical attention in a timely manner.