The best remedy for a cough is to boil water, put it in a basin with a few drops of eucalyptus oil. Then a towel should be put over it and the head under the towel. The steam is breathed in for at least ten minutes. It's okay to take breaks in between because it can be difficult to do. It causes coughing to worsen at first and a lot of phlegm will come up. But once the process is over, the congestion will be gone, the airways will be soothed and the cough will be lessened.
A heat pack should also be applied on the back, where the lungs are. These remedies can make a cold go away very quickly.