Phoenix, as a family member who has just started this journey with my daughter, although different may let you see where thier road block is. All our lives we are conditioned to think that illnesses that do not physically dibilitate us will heal with little to no medication. Just eat well and sleep and your body will heal itself. From colds to fevers to most common illnesses. After research , talking with doctors and really listening my thoughts and beliefs did a 180. They may be stuck in the rut of what they have believed about illness thier whole lives. It may take more time for them to learn this will not just go away like a scrape on a knee. I hope they do start to understand soon even if just in baby steps.