3 months after discharge from hospital baby pneumonia throat sputum sound is how to return a respons

With pneumonia, there is still sputum in the throat after discharge. It is usually caused by incomplete recovery. For example, the medication is stopped immediately after the symptoms are relieved during treatment, resulting in incomplete elimination of bacteria in the body. For this situation, it can be treated with expectorant drugs first, or treated by aerosol inhalation.