Setting
1- It is not a medicine, but an ailment
2- ‘Abdur-Rahmān ibn ‘Awf and Az-Zubayr ibn al-‘Awwām (may Allah be pleased with both of them) complained of lice to the Messenger of Allah (may Allah's peace and blessings be upon him)
3- The price of a dog is evil, the earning of a prostitute is evil and the earning of a cupper is evil