Castor oil Packs increase the blood flow and reduces inflammation. The healing is caused by the influx of so many powerful red blood cells to the area where the pack is applied. Castor oil Packs are beneficial for several issues such as gas, bloating, constipation, diarrhea, gastritis, leaky gut, irritable bowel, etc. Application of castor oil is a process of detoxification; it is effective to apply the Castor oil Packs over the uterus and ovaries, in case of infertility and pelvic pain.

Source: https://www.askdrskip.com/castor-oil-packs-in-healing-therapies/