السلام عليكم ورحمة الله وبركاته أحسن الله إليكم Someone did black magic on a person I know. What are the next steps to get rid of it?

Ustadh AbdulAziz al-Haqqan

There is no black and white magic, do ruqyah and recite surat albaqarah. Look in the book called the Muslim fortress.