In Depth Ketoret

If one would realize just how great the recitation of Parashat Haketoret is, he would meticulously adorn every one of its words with a golden crown, because when recited with the proper kavanah he will merit olam hazeh and olam habah.”

Among the list of accomplishments of the Ketoret, given by the sefer ‘Maavar Yavak’ are: the power of the Ketoret to nullify plagues, illnesses, and protection from subjugation. (Of course this refers to when it was said with proper kavanah and ratzon halev)