Which illnesses are G-d's realm and which are for the physician to heal?
Rabbi Yitzchak Ginsburgh explains the parallels between the emotional spheres and 7 principles derived from the phrase "Heal and he shall heal” found in Parshat Mishpatim.
To answer the question, all illness and all healing is from G-d.
conventional medicine, Doctor, fee, G-d, health, illness, natural medicine, persistence, prayer, severity
