I was in a class. Maulana mentions that the only leaf to directly clean the blood is the aloe leaf. I was then told that the leaf can also be placed into the Holy Quran and given to a child who has problems with Jinn, black magic, etc. My group was also given cloths red, green and white and was told that each had a purpose and use and it would be revealed to us.
It is indication for you to use it, as directed, because someone in the family has black magic done on them and it can be prescribed to others.
Shaykh Muhammad Hisham Kabbani