*Consuming pure and natural honey is an excellent way to getting rid of whooping cough.
*Salt-water gargle: Take a teaspoon of salt and mix it in warm water and gargle at least 4 times a day. It will give you relief from a sore throat.
*Take steam vapours: Steam inhalation is effective to cure
coughs and headaches that occur due to congestion. The
steam will help in discharging mucus which will clear the congestion.

Mix Apple Cider Vinegar + Honey + Ginger + Cayenne +some water. shake it and have 4 times daily. Also wash our hands, eat well, get enough sleep, stay warm.
I’m not saying it’s a cure-all, but it is better than having cough suppressants, expectorants, decongestant ..