Pain under the ribs in the right abdomen after a fall is mostly due to post-traumatic injury.
For this pain, it can be treated with topical sprays as appropriate. If the pain is mild, the usual attention to keeping the mood comfortable, eating less spicy and stimulating food and not staying up late can provide short-term relief; if the symptoms do not ease, you need to go to surgery for examination to detect the problem through physical and imaging examinations.