A severe cough with phlegm lasting three days may benefit from supportive care and monitoring, but if symptoms worsen or persist, seeing a doctor is important.

🩺 Immediate Relief Steps

• Stay well hydrated by drinking warm fluids like herbal teas or warm water with honey and ginger.
• Use a humidifier or inhale steam to help loosen mucus and soothe your throat.
• Rest adequately to support your immune system.

💊 Over-the-Counter Options

• Syrups like those containing expectorants can help thin and clear phlegm; however, since some require a prescription, consult a doctor before use.
• Avoid suppressants unless advised, as clearing phlegm is important.

⚠️ When to See a Doctor

• If you develop high fever, difficulty breathing, chest pain, or if the cough lasts more than 7 days.
• If phlegm is green, yellow, or bloody, medical evaluation is recommended.

Please consult a pulmonologist or general physician for a thorough assessment and appropriate treatment.To narrow down potential causes, we will need some more information.To provide you with an effective solution for your cough, could you please share your age and gender?