Cats’ behavior of scratching usually demonstrates their willing to leave their scent visual markings. As cats have no idea of punishment, you can’t dewclaw your cat. Instead you can provide a scratching post. Also you have to be careful come details:
Choosing the right scratching post is essential to avoid scratching. But what are the right posts? They refer to those sturdy and tall enough for your cat to reach up and stretch while scratching. Good choices also include sisal rope, corrugated cardboard, carpet or wood. Put posts next to areas where your cat likes to sleep.
Close supervision. Have a good command of preventing your cat climbing and scratching in places rather than scratching posts. If those do occur, keep calm down and take your cat to the post to direct it again. Reward or praise your cat if she uses the post. Keep doing it can help avoid this behavior effectively.
Wait for the results. When you see your cat is using the post regularly, try to confine your cat to a familiar room filled with toys, scratching posts, litter box, food and water when you are out of supervision. Get rid of any items that may tempt to scratch. If you find your cat is scratching the post regularly and frequently, you can try to gradually allow freedom in the home without supervision.
Provide a cat trees, perches,ect. Experiments prove that cats love vertical space and like climbing almost anything that can be climbed. If your cat frequently climb or scratch on your furniture or drapes and have no results with the above methods, you can provide them with cat trees, cat perches, etc., which are acceptable areas in which your cat can climb high without worrying about ruining the furniture. Sometimes you should allow cats to pursue their natural behaviors.