congested newborn!

My baby is 2 weeks old and seems to be a little co grated in her nose and sounds like her throat too! She is breathing fine just heavier breathing. She's not fussing or crying or not taking food so I don't believe she is sick and her temperature is good too. What can I do to help her? Iv been taking out her boogers. It all started when we turned up the AC to meet the temperature recommendations of the dr.