1. Avoid Over-the-Counter Medicines: Do not use OTC cough and cold medicines for infants under 2 years due to potential side effects.

2. Hydration: Ensure your baby is well-hydrated with breast milk, formula, or water.

3. Humidifier Use: Place a cool-mist humidifier in the baby's room to help with congestion.

4. Nasal Suction: Use a bulb syringe or nasal aspirator to clear nasal mucus gently.

5. Monitor Symptoms: Watch for signs like difficulty breathing, high fever, or poor feeding.

6. Consult Pediatrician: Since current medicines are ineffective, consult your pediatrician to rule out infections needing specific treatment.

Note: Avoid supplements without medical advice. Always consult your pediatrician before introducing new medicines or supplements.