History of medicine is a treasure of interesting experiences of humankind to treat diseases. Traditional medicine is a major part of this long history. World Health Organization (WHO) encourages all countries to extend their complementary and traditional medicines and supporttrained practitioners in this field. This strategy can lead to finding new treatments and opening new horizons to the herbal medicine researchers. Nowadays, a movement toward the integration of traditional and complementary medicine into mainstream medicine is evident. Iranian Traditional Medicine (ITM) remedies, similar to other branches of complementary and alternative medicine, have been documented to offer the treatment of gastrointestinal diseases.According to the principles of ITM, the production of abnormal "Humours" in human body can trigger a process through which a disease occurs. Heartburn is known as "Horqat" in ITM. Phlegmatic Horqat occurs due to the presence of abnormal "Phlegm" in the stomach. Phlegm creates heartburn usually after a meal and at the beginning of gastric digestion.There are several single and compound herbal treatments for Horqat in ITM. In this article, a novel treatment of GERD in Greek and Iranian traditional medicines called Jovarish-e Jalīnus (Galen’s digestive) has been introduced.