My mother fell down near bathroom and got ankle sprain. There is slight swelling on her ankle but has severe pain. The pain is not allowing her to walk or even keep her affected leg on floor. Her X ray will be done tomorrow, but for tonight, she wishes to take a painkiller tablet, which will at least allow her to sleep peacefully. Please suggest one such medicine. She has Hypothyroidism, Hypertension, Vertigo - although under control. She is Non-Diabetic.