There are number of things that can be done to alleviate your dog's pain. Firstly look at the paw and see if it is cut. If it is cut then you should clean the wound with warm water and cotton wool before wrapping it up so that no other dirt can get into the wound, then let it heal up naturally. As something as simple as this does not need to be taken to the vet who will charge you a substantial amount for something you could have simply done at home. However if after a few days there seems to be no signs of healing then it is wise to take your dog to the vet as the wound may have become infected, which is why it is not healing up.
If there is no cut, but some swelling this may be due to an internal injury your dog has suffered such as broken bone. The broken bone may not simply be in the swollen paw, it could be further up the leg. In this case the paw is swollen due to the affect of nerves which pass down through the damaged area of the leg to the paw. Here the best thing for you to do is to take your dog straight to the vet, who will be able to properly diagnose and then treat your dog.
It is wise to remember that the paws of your dog are some of the most sensitive areas on them. However with dogs having much high pain thresholds than humans problems can be around for much longer, before your dog starts to feel in pain. Certain chemicals that are sprayed on crops where dogs may be taken for walks can irritate dog's paws which can lead to them biting them just as we would scratch at an irritating rash on our skin. This biting can cause cuts in the paws and due to poor hygiene of most dogs mouths can lead to an infection. Again the best thing to do in this case is to clean the paw, wrap it up and take your dog to the vet.
If there is no cut, but some swelling this may be due to an internal injury your dog has suffered such as broken bone. The broken bone may not simply be in the swollen paw, it could be further up the leg. In this case the paw is swollen due to the affect of nerves which pass down through the damaged area of the leg to the paw. Here the best thing for you to do is to take your dog straight to the vet, who will be able to properly diagnose and then treat your dog.
It is wise to remember that the paws of your dog are some of the most sensitive areas on them. However with dogs having much high pain thresholds than humans problems can be around for much longer, before your dog starts to feel in pain. Certain chemicals that are sprayed on crops where dogs may be taken for walks can irritate dog's paws which can lead to them biting them just as we would scratch at an irritating rash on our skin. This biting can cause cuts in the paws and due to poor hygiene of most dogs mouths can lead to an infection. Again the best thing to do in this case is to clean the paw, wrap it up and take your dog to the vet.