An 8-year-old boy is brought to a local health post in rural Nepal by his parents with complaints of intense pain accompanied by swelling in his left wrist preceded by a fall on outstretched hand. The child is crying constantly and as per the Wong-Baker FACES Pain Rating Scale, he has a pain of “Hurts Worst”. The wrist has a dinner fork like appearance. There are no imaging facilities in the health post and neither anesthesia consults or services. The nearest hospital is over eight hours drive away. Given the limited resources, what is the best pain management approach until he is transported to a higher center?