She started out as a graduate in Music Ethnology, carrying out fieldwork in the 1970s in the slums of northern India. She resigned from her university post, following a career as a coloratura soprano at home and abroad for 20 years. In parallel to this, she began to study medicine and healing. During her studies, she developed therapeutic kinesiology for coma patients, dementia sufferers and the dying. In her practice, Rosina Sonnenschmidt tends to treat particularly patients who have cancer or other “incurable” conditions. The mainstays of her work are miasmatic and process-oriented homeopathy, kinesiology and psychological therapies. Rosina Sonnenschmidt is the most well known holistic homeopath in Germany, combining homeopathy, naturopathy, nutrition and mental exercises in her treatment. Following the motto "treatment starts at home", she tries to involve the patient actively with diet, exercises and mental concepts in the healing process. Rosina Sonnenschmidt's approach is unorthodox and open to new methods. She senses healing potential intuitively and is always ready to follow new paths. She is an internationally renowned seminar speaker and has already produced many works on homeopathy, healing and mediumship.