Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to treat an injured rabbit's paw [title] Identify sore hocks. [step] Pododermatitis, also called sore hocks, is a common ailment among rabbits. This painful condition can be easily prevented with proper exercise and comfortable housing.

Ending1: By being kept warm and alive, the fungus at the joint is eliminated and no swelling remains. This is frequently the case in older rabbits. Ending2: The initial swelling or redness associated with the sore hock is usually vague. This will usually go away within the first few days. Ending3: Once the condition has set in, though, you'll need to take quick action to treat the injury. Leaving it untreated will lead to infections and further pain. Ending4: The skin and nails of a sore hock can become inflamed and burned. [substeps] When pinching the hock, the injured paw often splits.

Answer format: ending1/ending2/ending3/ending4