Why dogs chew your stuff
Dogs chew to relieve teething pain, to burn mental energy, to self-soothe when anxious, and because it feels good. A dog who chews the table leg is meeting a real need with the wrong object. Punishing the chewing does not remove the need. It just teaches the dog to chew when you are not watching.
Step 1: Manage the environment
For the next month, the dog earns freedom gradually. When you cannot supervise, the dog is in a puppy-proofed room, pen, or crate with legal chews. Bitter apple spray on furniture legs helps some dogs, but it is a backup, not a plan. Every successful chew on your sofa is practice you have to undo.
Step 2: Offer better options
A dog with one rubber toy will choose your chair. Build a chew rotation: bully sticks, frozen stuffed Kongs, rubber toys, safe edible chews. Rotate every few days so they stay novel. Match the chew to the moment: a frozen Kong for crate time, a bully stick for evening settle time. Chewing is also fantastic enrichment. Fifteen minutes of hard chewing tires a dog out like a walk.
Step 3: Teach the trade
When the dog has something they should not, do not chase (chasing makes it a game) and do not pry it out (that teaches resource guarding). Offer a high-value treat, say "drop it" as they release, then treat, praise, and give the item back when it is safe. The dog learns that giving things up always pays and nothing is ever stolen. Practice with boring items first so the habit is strong before you need it on a chicken bone.
Rule out the underlying cause
Sudden destructive chewing in an adult dog can signal anxiety, a big routine change, or not enough exercise and mental work. Puppies chew from teething until about 7 or 8 months. Match the solution to the cause: more exercise and enrichment for the bored dog, gradual alone-time training for the anxious one, frozen chews for the teether.