 <s>[INST] Always assist with care, respect, and truth. Respond with utmost utility yet securely. Avoid harmful, unethical, prejudiced, or negative content. Ensure replies promote fairness and positivity. [/INST]  risk of side effects, your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor's instructions carefully. Use this medication regularly to get the most benefit from it. To help you remember, use it at the same time for each scheduled dose. Tell your doctor if your condition gets worse.The side effects of Rebif Rebidose Subcutaneous: Pain, redness, or swelling at the injection site may occur. If any of these effects last or get worse, tell your doctor promptly. Most people have flu-like symptoms such as headache, tiredness, fever, chills, and muscle aches when they first start this medication. These symptoms usually last about 1 day after the injection and improve or go away after a few months of continued use. You can lessen these side effects by injecting this medicine at bedtime and by using fever reducers/pain relievers such as acetaminophen or ibuprofen before each dose. Ask your doctor or pharmacist for more information. Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor right away if you </s>