 <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]  eye, a bad taste in your mouth, or sensitivity to light may occur. If any of these effects last or get worse, notify your doctor or pharmacist promptly. White crystals may appear in the treated eye(s) after the first few days of ciprofloxacin use, but they usually go away in a few weeks. This effect is harmless. Keep your scheduled appointments so your doctor can closely monitor your eye infection. If you notice any new or worsening eye symptoms (such as increased discharge, eye pain), tell your doctor right away. 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. Use of this medication for prolonged or repeated periods may result in a new fungal eye infection. Do not use it for longer than prescribed. Contact your doctor if you notice new or worsening symptoms. Tell your doctor right away if you have any serious side effects, including: staining of the eye, swelling in or around the eye, eye pain, worsening vision. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash </s>