Whooping cough is a contagious disease caused by the bacterium Bordetella pertussis. Symptoms usually begin with a runny nose and cough and progress to severe wheezing over the course of a few weeks. While antibiotics are not effective for whooping cough, there are natural supplements such as multivitamins and botanicals & mushrooms that can support the immune system. Eating a balanced diet and getting enough sleep will also help strengthen the body in fighting this infection.