My son is 1month and 1week old he have a cough what medicine can give? thanks

All natural: Steam up your bathroom with a hot shower to help with congestion. The CDC and AAP do not recommend cold medicine for children under 4. http://www.cdc.gov/getsmart/community/for-patients/symptom-relief.html. If coughing makes it hard to eat or breathe, please contact your doctor right away.

No meds: The first months are troubled by narrow nasal passages & exposure to dust, fragrances, smoke & other irritants.Baby tries to flush these out of the nose with mucous but this often ends as congestion &cough& produces rattling with breathing. The best rx is washing out the nose with saline & suctioning the remainder. Eliminate irritants from babies environment & this will happen less.