My 9 month old baby has a cough that we can't seem 2 get rid of.. what can i do to get rid of this cough so he can get better?

Cough remedy: Suck out the mucus in his nose with a bulb syringe, use saline nose drops 4 times daily, take him into the washroom, turn on the hot shower and let him breath in the hot steam. Elevate his matress with a wedge and keep the vaporizer on where he sleeps. If the cough does not improve in several days check him over by his pediatrician push fluids, reduce milk.