The visible development of physical medicine being the basis of health resort treatment did not take place at universities, where this field was designated as a minor subject for a long time. Wolfgang Krauss believed that physical medicine developed between 1890 and 1914 as a result of the specific situation of Jewish docents, mainly in private practices and laboratories [
18]. Apart from the treatments traditionally associated with health resort therapy, which is therefore related to the application of mineral and thermal waters, other treatments appeared, e.g. electrotherapy, fango, electric-hydro baths, modern hydrotherapy, inhalation, sauna, radon treatment and mud treatment. The use of peloids (for example mud) was significant for the development of Galician health resorts. Dr. Hermann Hirschfeld (1825–1885) from Szczecinek (German Neustettin) had a great impact on the popularization of this balneological material in medicine. He examined the therapeutic properties of Kołobrzeg (German Kolberg) mud and contributed to the development of this peloid treatment [
19]; however, his greatest contribution was related to balneoclimatic research, which contributed to the development of seaside health resorts. In the nineteenth century, the health resort offer widened to include climate resorts, such as mountain and seaside ones. Until that time, healing baths in sea water were an unknown phenomenon. It can be assumed that the increasing popularity of this kind of resort was also proof of changes in awareness and the upcoming cultural revolution. Hirschfeld, as a chief doctor in the Jewish Sanatorium of Health in Kołobrzeg, conducted extensive research related to the influence of brine, sodium chloride water and sea climate on the body and their important role in health resort therapy [
20]. Hirschfeld’s research was continued by another Jewish physician involved in the development of the health resort culture in the borderlands, a microbiologist from the National Institute of Hygiene in Lviv, Prof. Henryk Meisel (1894–1981). He was born into an assimilated Jewish family residing in Przemyśl. He studied medicine at the University of Vienna. From 1922 to 1939 he dealt with, among others, determination of therapeutic properties and treatment suitability of mud from Morszyn. This mud, next to chloride and sodium waters, was the most important balneological material in this health resort city [
21]. At the late nineteenth and early twentieth centuries, treatment and prevention of a new group of diseases were introduced in health resorts, namely lifestyle diseases along with health education. A neurologist and urologist, Dr. Samuel Edelman (1891–?) was an example of a physician innovator in this field. He graduated in medicine in 1924. His interests included population metabolic disorders, especially diabetes. He supported the introduction of dietetic nutrition to health resort treatment in Poland as a necessary pillar of this therapeutic process. He worked in Truskawiec, among others in the Badiana and Arkadia villas [
22]. His relative, Dr. Adolf Edelman (1883–1944) was professionally related to Vienna, Karlovy Vary and Truskawiec [
23]. He was born in Działoszyce near Kielce within the borders of the former Kingdom of Poland. After graduating in medicine at the Jagiellonian University, he practiced among others under the supervision of Dr. Jaworski in Cracow. After defending his PhD in 1911, he began practicing at the Karl Harko von Noorden Clinic (1858–1944) in Vienna. Then, he worked as an assistant and later as a temporary head of the Wilhelminespital internal department at Karel Frederik Wenckebach’s (1864–1939) clinic and as the head doctor of the Children’s Hospital and the Research Institute in Vienna. He carried out studies, among others, on hematology and chemotherapy. In the summer, he examined patients in Karlsbad in the Vulcan villa and sometimes in Truskawiec [
24]. He was a medical innovator and a pioneer in health resort treatment, for example related to hematologically based pediatric diseases. There are two medical eponyms related to his name: Edelman syndrome I chronic, acute anemia and Edelman’s syndrome II pancreatitis with hepatocellular infiltration. In 1931 he discovered an element in the blood that he called kinetozyten. Medical treatment of metabolic diseases was also the subject of the study of internist Maximilian Blassberg (1875–1942) from the Jewish hospital in Cracow, who demanded the introduction of “special devices in Polish health resorts for diabetic patients” (translated by Izabela Spielvogel; [
25]). His lectures on health resort medicine contributed to the development of this scientific discipline. He was also an active activist for the establishment of the Balneological Institute in Cracow [
26]. The Blassberg collaborator, Dr. Adolf Schwarzbart (1882–?), the head of the laryngological department of the Jewish hospital in Cracow, who was involved in the development of inhalation methods in health resort treatment, also contributed to the development of health resort treatment in the borderlands [
27]. Inhalation methods were popular, among others, in health resorts in Kosów, Jaremcze, Truskawiec, Druskieniki and Birszrtany. Issues related to the treatment of metabolic diseases at health resorts were also the interest of Dr. Alexander Goldschmiedt (1903–1982) in the 1930s [
28]. After the war, he was, among others, a member of the Scientific Council of the Balneological Institute of the Polish Academy of Sciences, employee and rector of the Medical Academy in Łódź (1954–1955) and a chief physician of the health resort in Uzbańsk, Ukraine. In 1956 he moved to Israel. Stefan Kramsztyk (1877–1943) from Warsaw was another well-known physician who was involved in the development of health resort treatment methods. His brother Józef translated the first volume of the famous novel of Thomas Mann’s
The Magic Mountain into Polish. The novel is set in the Swiss health resort in Davos. Stefan Kramsztyk graduated in medicine from the University of Warsaw in 1903. His scientific works and lectures, also as part of the Polish Society of Balneology and Physical Medicine, contributed to the development of balneotherapy. He was interested in the physicochemical properties of iron-containing mineral waters and their clinical effect on, among others, anemia in children. Together with his wife, he was arrested in 1943. He died in Otwock near Warsaw [
29]. Dr. Chaim Blumstein (1890–1946) was another physician involved in the development of the health resort medicine of eastern Galicia. He was a respected surgeon in the Jewish hospital in Grodno and he had a prosperous modernist sanatorium in Druskieniki.