The seed of Mustard is the smallest grain, And yet the force thereto is very great, It hath a present power to purge the brain, It adds unto the stomach force and heat: All poison it expels, and it is plain, With sugar 'tis a passing sauce for meat. She that hath hap a husband bad to bury, And is therefore in heart not sad, but merry, Yet if in show good manners she will keep, Onions and Mustard-seed will make her weep. The Englishmans Doctor.       Or, The School of Salerne,       Or, Physical observations for the perfect Preserving of the body of Man in continual health Sir John Harington, 1608 (thetvdb.com)