Although there are many home remedies for cold you must also take care of the following-
Increasing humidity in the air helps relieve coughing. A vapourizer and a steamy shower are two ways to increase the humidity.
Drink extra fluids to help thin secretions and make them easier to cough up.
Glyceryl guaiacolate (guaifenesin) is available without prescription and may help liquefy the mucous. Drink lots of fluids if taking this medication.
When a cold and a stuffy, runny nose accompany the cough, it is often caused by mucous dripping down the back of the throat. A decongestant that opens the nasal passages will relieve this postnasal drip, and is the best treatment for that type of cough.