Undo the Velcro straps.
Slip the brace on your forearm.
Adjust the brace so the forearm splint is on the side of your arm below your thumb. The top Velcro strap should be approximately 2 inches below the elbow.
Fasten the straps securely around your forearm to where it feels snug, but is not cutting off your circulation.
Wear the brace 24 hours a day, 7 days a week for a month, including while you sleep. If the pain is not reduced, seek help from a medical doctor or physical therapist.