Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to care for a guinea pig with a long term injury [title] Get a vet-advised painkiller for your pet. [step] Many vets who look after small animals will be able to get dosages in guinea pig sizes. Follow your vet's advice as to dosage and method for giving to your pet.

Ending1: Make sure your veterinarian has a good knowledge of how much your pet needs if you decide to give his or her pet more. [substeps] See your vet's website to learn more about the dosage you should give your guinea pig and your caring service. Ending2: [substeps] Do not give a guinea pig more than 250 mg or less a day if in serious pain or their particular case of illness is severe. [title] Check how frequently you have come in contact with your guinea pig. Ending3: If your vet advises against such usage, then skip this step. [title] Get small, thin syringes that you can fill with water and keep a bowl handy. Ending4: It is not always wise to take too many painkillers with your mouse. At high doses, your mouse's circulatory system needs additional fluids for a long term recovery.

Answer format: ending1/ending2/ending3/ending4