There is no medication that you can/should really give him. I use saline nose drops, humidifier, and lots of fluids. Aspiration helps too if he will let you do that. I know there is Vicks Baby Rub that can help with a cough. I rub it on my older son's feet and put socks on at night, and no coughing. :) Just some ideas. Hope that helps. It's rough for a mom to not be able to fix her baby, but he is young, and his immune system is getting it's workout.