Disease can be bifurcated into 2 kinds, those indicated by the planetary combination and those caused by environmental changes. The first kind is the result of the karma of the previous birth. There's a point to ponder here. Whether the karma of the previous birth will play a role or the horoscope. The karma of the previous birth will be self evident in the horoscope.
Medical astrology requires a unique combination of both healer and astrologer.
Man can get what he wants with money. But even money cannot alter the course of destiny and malady is one of them. The medical professionals in the USA are acquainted with medical astrology and based on that, they treat patients and get the desired results. In today's world of tele-medicine, there are good softwares available for medical astrology. A doctor can consult a competent astrologer to complement the diagnosis.