If this is your pet please DO NOT risk your dog's health and life waiting for answers which will likely not serve any purpose! PLEASE get your dog to a vet ASAP!
Nipping or chewing the leg can cause swelling for a dog i recommend going to the vets
could be cellulitus, or a blood clot in the leg
You can put ice or heat on your leg, this will help with your swelling.
Its leg might be broken, or something with the leg or stomach muscles.
put ice on your leg when it swelling up really bad.
It's important that you see your vet to be sure there is no broken bones. It's a myth that some dogs or even humans can't walk if they break a bone in their leg or foot. It depends where the break is. After the vet evaluates your dog they will tell you how to get the swelling down.
No, the spores and bacteria are dispersed in the bloodstream. It causes a good deal of swelling and gases.
should the leg be elevated for swelling from snake biting
if you go to a hospital
You can determine which leg of your dog hurts by observing their body language, such as limping or favoring a specific leg, reluctance to put weight on one leg, swelling or tenderness in a particular leg, or vocalizing in pain when a certain leg is touched or moved. It's best to seek veterinary advice for a proper diagnosis and treatment.
High blood pressure perhaps...
It will depend upon the cause of swelling. If it is due to post operative clot in the veins -DVT, treatment will require elevation, compression stockings and anticoagulant therapy. If the swelling is due to cancer surgery with removal of the lymph nodes for clearance, and if patient has had radiotherapy, it causes damage to the lymphatic system and treatment will be elevation of legs, compression stockings. In both cases there may be residual permanent swelling in the leg.