Epsom salts contain potassium and nitrates that allow them to help heal small injuries, and they can be helpful when it comes to cleaning a dog's paw. A poultice is a liquid substance that helps draw out infection and cleanses a wound. Though a soak in Epsom salt is a very thin poultice, it does achieve the same result. If your dog's paw is swollen or if it is suffering from the effects of an abscessed nail bed, use an Epsom salt poultice to offer your pet some relief.
Fill a large pot with 1 gallon of water.
Pour 1/2 cup of Epsom salts into the pot.
Put the pot on the stove and heat until the water is warm to the touch. Stir with a wooden spoon until the salt has completely dissolved.
Check the water with your finger to make sure that it is not too hot.
Place the pot on the floor.
Dip the dog's affected paw into the water and hold it in there for 5 to 10 minutes.
Pat the dog's paw dry with a clean rag.
Repeat this procedure two to four times a day.