Dogs with obstructed bowel typically require medication. Fiber will usually help to free up the obstruction although the dog should definitely be seen by a veterinarian.
Get your dog to the vet as soon as possible. An obstructed bowel could be fatal unless it is properly treated. Also try to figure out what caused the problem so you can prevent it in the future.
Instead of asking people online questions you need to take it to the doctors office immediately. It could be serious and the only way to know is to take it to the vet.
Bowel obstructions are an emergency and can result in death. Take your dog to the vet immediately. Be prepared for a lot of expense if you want to treat it.