In order to make the repairs to settling cracks, you'll need a caulking gun, Latex Acrylic Caulking, and a wet and dry rag. Always purchase a quality brand of caulking. Better caulking is easier to use, has greater flexibility and sticks better. Cut a small opening on an angle at the tip of the caulk tube. You want to start at the top of the crack and work your way down. The key is to use your finger to work the caulk into the crack. Remove excess caulk with your finger. You'll want to dampen your finger first, then rub caulk into cracks, removing the excess from your fingers with the wet rag. You do not want to use the wet rag on the wall as it could damage your paint.
