Not really; the marking is actually a behavioral/training issue. Hire an expert dog trainer who specializes in "positive training" to come over and teach you how to solve the problem. It should take about 1-2 weeks of consistent training with the trainer's instructions.
If the dog is marking for sexual reasons, then it is possible that castration will stop him doing this. Unfortunately, many dogs initially mark for sexual (/territorial) reasons, but after a while the behaviour becomes learnt. Castration will stop innappropriate sexual behviour, but may not prevent urine marking (which may have become a learnt behaviour). Get advice from a professional behaviourist if castration doesn't help.
The most effective spray to stop dogs from licking their paws excessively is a bitter-tasting spray specifically designed to deter licking behavior. These sprays are safe for dogs and can help discourage them from licking their paws.
you can train it to pee outside
yep
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Get the dog some good chew toys. Dogs need to chew.
Have your dogs been fixed? A majority of dogs will display this behavior if they have not been neutered. I highly recommend it if there is not a reason to keep him intact.
Nothing to spray but you can get a collar to stop it. Their are 2 kinds the shock collar (delivers a light electric pulse when the dog barks) or the water collar (Sprays a mist of water at the dogs chin when it barks)
Neutering should not change his temperament at all ....but it may change a couple behaviors that many dog owners find annoying in un-neutered male dogs. Specifically it will likely stop him from "marking territory" with urine sprays and will discourage (but not eliminate) urges to roam as male dogs tend to do that in search of female dogs in heat.(But that does NOT mean your male Westie will become an "off-leash" dog .... terriers do not do well off-leash as they are far too curious and distractable as well as being very fast runners!)
Yes it will because when a male cat pees around the house it means he's marking his teritory from other male cats.It will work for sure. if not see a vet.
All dogs bark at strangers, there alerting you that there is someone there, soft scolding should stop it but they do it for your safety.
The best spray to stop a dog from licking its paws is one that is specifically designed to deter licking behavior, such as a bitter apple spray or a bitter cherry spray. These sprays have a taste that dogs find unpleasant, which can help discourage them from licking their paws.