Framing a medicine cabinet involves constructing a wooden frame to hold the cabinet in place. Gather essential tools like a measuring tape, level, and nails, and purchase a medicine cabinet, wood framing, drywall, paint, and trim. Determine the cabinet’s location, measure and cut the framing to fit, and attach it to the wall with nails. Install drywall around the frame, paint it to match the wall, and add trim to enhance the cabinet’s appearance.