Colds, wheezing with phlegm in the trachea may manifest as a phlegmatic sound, a sound similar to the rupture of a kind of blister. Colds usually present with coughing and phlegm, and phlegm will be present in the trachea. As a result of coughing or normal wheezing, the more viscous secretions will vibrate along with the breath, manifesting themselves as a sound similar to that of a ruptured blister, which is a more specific wet rhonchi that is audible during inhalation as well as exhalation, but predominantly during inhalation. If you cough up a lot of sputum, this sound may be temporarily weakened or disappeared, but along with the development of the disease, it may always exist, so you need to go to the appropriate department of the hospital in time, under the guidance of the doctor to improve the relevant examination standardized treatment.