EFFECTIVE MEDICINE FOR COLD AND COUGH

HI MY SON HAS A COUGH AND COLD BUT I TRY TYLENOL INFANTS AND ADVIL INFANTS TO RELIEVE HIS COLD AND COUGH BUT I THINK IS NOT HELPING HIM TO RELIEVE HIS COUGH. DO YOU HAVE ANY OTHER RECOMMENDATIONS OR HOME REMEDIES. BTW HE HAD NO FEVER AND NO ONE US SICK IN THE HOUSE. MAYBE HE GOT IS COLD AND COUGH BECAUSE OF THE WHEATHER HERE IN CANADA BECAUSE SOMETIMES IS HOT AND SOMETIMES IS COLD.