Clean the damaged surface and its surrounding area with mild soap and water. Dry the surface with a soft cloth.
Wipe the damaged area with a rag dampened with rubbing alcohol.
Use scissors to cut out a portion of a sub-patch from a leather repair kit, slightly larger than the damaged area, if the hole is deep or large.
Apply glue on the edges of the sub-patch, and insert it underneath the damaged area with the glue side facing up. Flatten the sub-patch against the leather fabric. Let the glue set for five to 10 minutes.
Mix the repair compound with the color that matches the rest of your leather furniture piece, using the color palette provided in the kit.
Apply the repair compound on the damaged surface with the plastic palette knife. Spread around the surrounding edges to blend in the repair area.
Wipe over the repair area with a cloth dampened with rubbing alcohol to smooth out rough patches. Let the compound dry.
Spray leather finish on the repair area.
Condition your furniture piece with leather conditioner, following the manufacturer's instructions.