Cough generally has four phases: dry cough phase, phlegm stagnation phase, phlegm movement phase and phlegm removal phase.
1. Dry cough stage: It is characterized by a slight tickling of the throat, dry cough but no phlegm.
2. Stagnant phlegm stage: there is phlegm and phlegm sounds, but no phlegm can be coughed up.
3. The phlegm-movement phase: the more phlegm there is, the stronger the cough, and the more phlegm is discharged with the cough.
4. Dephlegmation phase: the cough is in the dephlegmation phase and the phlegm will be discharged gradually with coughing. After the phlegm is discharged, there will still be a dry cough, and you need to continue to take medication, and then the cough will be cured slowly.
If the above symptoms occur, you should go to the hospital in time for examination and correct treatment under the guidance of the doctor. If the patient has a dry cough, you need to take medication in a timely manner, and do a good job of care, so as not to delay the condition of the cough recurring difficult to heal the situation.