The common cold is a viral infection of the nose and throat. Different types of viruses can cause it. The symptoms usually include chest congestion, coughing, runny nose and sneezing. It is generally harmless, and the symptoms typically resolve within a week or two. Ayurvedic medicines for coughs and colds are the best way to control the symptoms. You can also try Ayurvedic home remedies such as Ayush Kwath Kadha to prevent viral infections such as common colds and flu.