To manage asthma, sinus issues, and nasal polyps, follow a combined approach: use your asthma inhalers and nasal sprays exactly as prescribed, take any prescribed medicines for polyps, and avoid triggers like dust, smoke, and strong odours. Regular nasal irrigation with saline can help reduce congestion, and keeping your home clean and humidified can ease symptoms. If symptoms worsen, you may need a doctor to adjust medicines or consider procedures for nasal polyps. Regular check-ups are important to prevent complications.