What might cause lethargy and coughing blood one week after being discharged from hospitalization for TB?

Thank you for your question. I’m sorry to hear that your mother is suffering from a prolonged and problematic cough which can be a complex condition. Coughing is a reflex that protects your upper airway and lungs from irritants such as excessive mucous and foreign bodies. When persistent, it is often a symptom of a condition, ranging from conditions arising from the nose & sinuses (e. g sensitive nose, sinus infections), lungs (e. g asthma and bronchitis), throat and stomach (e. g. acid reflux from the stomach) to side effects from medications or smoking.

Cough is a reflex that protects your upper airway from foreign materials and irritants. However, when persistent, it can be a troublesome symptom. The cause of a chronic or prolonged cough can range from conditions arising from the nose (e. g. Rhinitis and Sinusitis), stomach (e. g. acid reflux from the stomach to the throat, medically known as Laryngopharyngeal reflux or LPR) and lungs (e. g. Asthma, Bronchitis etc) to side effects from medications (e. g. blood pressure medications) and smoking.