To help you feel better, you may want to try the following self-care measures:
Avoid lung irritants. Don't smoke. Wear a mask when the air is polluted or if you're exposed to irritants, such as paint or household cleaners with strong fumes.
Use a humidifier. Warm, moist air helps relieve coughs and loosens mucus in your airways. But be sure to clean the humidifier according to the manufacturer's recommendations to avoid the growth of bacteria and fungi in the water container.
Consider a face mask outside. If cold air aggravates your cough and causes shortness of breath, put on a cold-air face mask before you go outside.