What can i give my one month old infant for cough

My one month old infant has a cough and congestion

Consult doctor. By the time try this: Turn the bathroom into a steam room with the door closed and the shower on full hot for 4-5minutes. Steam helps to loosen mucus and relieve congestion.

Eucalyptus essential oil in a diffuser. Mix with distilled water. Diffusers can be found for 10-20 bucks at most pharmacies. If cough exceeds 3 days, consult md.