Chamakam is vediv hymn is usually followed after Sri Rudram.
Both hyms are in praise of Lord Shiva or LordRudra. Reciting Chamakam will clear all types of disease especially respiratory problems and lung problems. By hearing this daily at any time gives our mind a clarity in thinking and do things systematically in life. Scientifically it is proved that hearing or reciting gives a calmness to our brain.