If the pad is split ,then follow the instructions .If its sliced leaving some pad barely attached ,you need to assess whether or not there is blood supply to it or whether it needs trimming off .When trimmed follow same instructions . Personally ,this only my opinion mind ,I would clean it thoroughly and pack it with sudacream then cover it with a dressing then bandage but not tight .Change every day ,cleaning with warm salt water ,dry and re-apply the cream and cover .