A severe cough with thick mucus for three days can often be managed with medications that help loosen and clear the mucus from your airways. One appropriate option is Grilinctus-LS Syrup, which combines a bronchodilator, a mucolytic agent, and an expectorant to relax airways, thin mucus, and make coughing more productive.

• Medication: Grilinctus-LS Syrup is used to treat cough with mucus and respiratory conditions like asthma or COPD. It should be taken exactly as prescribed by a doctor.
• Precautions: Avoid using this syrup if you have allergies to its ingredients or certain conditions like fits, diabetes, or heart problems without medical advice.
• When to see a doctor: If your cough worsens, you develop fever, chest pain, difficulty breathing, or symptoms persist beyond a week, seek evaluation from a pulmonologist or general physician.
• Supportive care: Stay well hydrated and rest to help thin mucus and ease coughing.

Please consult a doctor before starting this or any medication to ensure it is safe and appropriate for your specific health situation. If symptoms become severe or you experience breathing difficulty, seek urgent medical care.