Clinically, there is no such thing as what to eat to get better fast in elderly people with cough and phlegm. Older people coughing with phlegm may be related to chronic pharyngitis, chronic bronchitis, bronchial asthma, etc., can be through the general treatment, taking medication, inhalation of glucocorticoids and other methods to alleviate the symptoms. 1. Chronic pharyngitis: Chronic pharyngitis will have the symptom of coughing with phlegm, which can be relieved by general treatment such as improving the working and living environment and taking watermelon cream tablets. 2. Chronic bronchitis: Older people who have smoked for a long time or who are exposed to air pollution are more likely to suffer from chronic bronchitis and cough with phlegm. You can take dextromethorphan hydrobromide tablets, ambroxol hydrochloride oral solution and other drugs to suppress cough and expectorant. 3. Bronchial asthma: Elderly people with family members suffering from asthma and sensitivity to multiple allergens may suffer from bronchial asthma, resulting in symptoms of coughing and phlegm. Inhalation of glucocorticosteroids such as budesonide inhalation aerosol, or inhalation of bronchodilators such as salmeterol to control asthma attacks, thereby relieving the symptoms of cough and phlegm. There may be other causes of coughing and phlegm in the elderly, and it is important to consult a doctor to find out the cause of the cough so that targeted treatment can be carried out. When you need to take medication, you should take it under the guidance of a doctor, and not use it arbitrarily, so as not to cause adverse effects on the body.