Hi thanks for writing to Practo consult
Does your baby have fever, cough, difficult breathing. If No please give Normal saline nasal drops ,( pleanty are available in market), 2 drops before every feed, to keep nose clear. If required use, nasal mucus sucker to clean nose. If no improvement in 2 days or you observe signs I mentioned above, Visit Pediatrician.
Next Steps
Do read my article
"Common Cold: Its Very Common, Don't Panic" by Dr. Poonam.M. Sambhaji - https://www.practo.com/healthfeed/common-cold-its-very-common-don-t-panic-8682/post