Vamana refers to induced vomiting for some time to eliminate toxins or ama as well as junk from the body. This procedure uses the upward movement of the doshas to remove toxins associated with Kapha, which are primarily deposited in the upper part of the body.
Vamana is specifically useful for Kapha related disorders such as, Asthma, Lung congestion, sinusitis, chronic cold, and allergies.