 <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]  Sunlight may worsen this effect. Limit your time in the sun. Avoid tanning booths and sunlamps. Use sunscreen and wear protective clothing when outdoors. If you are nearsighted or wear contact lenses, you may develop vision problems or trouble wearing your contact lenses. Contact your eye doctor if these problems occur. If you get a vaginal infection while using this ring, it is recommended that you remove the ring and resume treatment only after the infection has been treated. Consult your doctor or pharmacist for more information. This medication should not be used during pregnancy. If you become pregnant or think you may be pregnant, tell your doctor right away. This medication passes into breast milk. It may reduce the quality and amount of breast milk produced. Consult your doctor before breast-feeding.The interactions of Estring Vaginal: Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Some products that may interact with this drug include: aromatase inhibitors </s>