Witches have made potions for thousands of years. They were the first "healers". Of course, today all this has been taken over by the Medical Profession. But, Medical Researchers are still doing what witches used to do; finding new drugs, finding new treatments.
I am a witch, and can still make potions,but the medical Profession does it better, and they have more resources.I still, now and then, have domestic animals brought to me for treatment. And I still have jars of potions and ointments.